diff --git a/addons/account/account_invoice.py b/addons/account/account_invoice.py
index 39cc471c2f6..bef6e68221a 100644
--- a/addons/account/account_invoice.py
+++ b/addons/account/account_invoice.py
@@ -610,15 +610,15 @@ class account_invoice(osv.osv):
             res[r[0]].append( r[1] )
         return res
 
-    def copy(self, cr, uid, id, default={}, context=None):
-        if context is None:
-            context = {}
+    def copy(self, cr, uid, id, default=None, context=None):
+        default = default or {}
         default.update({
             'state':'draft',
             'number':False,
             'move_id':False,
             'move_name':False,
             'internal_number': False,
+            'period_id': False,
         })
         if 'date_invoice' not in default:
             default.update({
@@ -1642,12 +1642,7 @@ class res_partner(osv.osv):
     }
 
     def copy(self, cr, uid, id, default=None, context=None):
-        if default is None:
-            default = {}
-
-        if context is None:
-            context = {}
-
+        default = default or {}
         default.update({'invoice_ids' : []})
         return super(res_partner, self).copy(cr, uid, id, default, context)
 
diff --git a/addons/account_voucher/account_voucher.py b/addons/account_voucher/account_voucher.py
index 535f76b8d64..2b63157ef30 100644
--- a/addons/account_voucher/account_voucher.py
+++ b/addons/account_voucher/account_voucher.py
@@ -91,10 +91,10 @@ class account_voucher(osv.osv):
         return False
 
     def _get_payment_rate_currency(self, cr, uid, context=None):
-        '''
+        """
         Return the default value for field payment_rate_currency_id: the currency of the journal
         if there is one, otherwise the currency of the user's company
-        '''
+        """
         if context is None: context = {}
         journal_pool = self.pool.get('account.journal')
         journal_id = context.get('journal_id', False)
@@ -141,20 +141,22 @@ class account_voucher(osv.osv):
     def fields_view_get(self, cr, uid, view_id=None, view_type=False, context=None, toolbar=False, submenu=False):
         mod_obj = self.pool.get('ir.model.data')
         if context is None: context = {}
-        if not view_id and context.get('invoice_type', False):
-            if context.get('invoice_type', False) in ('out_invoice', 'out_refund'):
-                result = mod_obj.get_object_reference(cr, uid, 'account_voucher', 'view_vendor_receipt_form')
-            else:
-                result = mod_obj.get_object_reference(cr, uid, 'account_voucher', 'view_vendor_payment_form')
-            result = result and result[1] or False
-            view_id = result
-        if not view_id and view_type == 'form' and context.get('line_type', False):
-            if context.get('line_type', False) == 'customer':
-                result = mod_obj.get_object_reference(cr, uid, 'account_voucher', 'view_vendor_receipt_form')
-            else:
-                result = mod_obj.get_object_reference(cr, uid, 'account_voucher', 'view_vendor_payment_form')
-            result = result and result[1] or False
-            view_id = result
+
+        if view_type == 'form':
+            if not view_id and context.get('invoice_type'):
+                if context.get('invoice_type') in ('out_invoice', 'out_refund'):
+                    result = mod_obj.get_object_reference(cr, uid, 'account_voucher', 'view_vendor_receipt_form')
+                else:
+                    result = mod_obj.get_object_reference(cr, uid, 'account_voucher', 'view_vendor_payment_form')
+                result = result and result[1] or False
+                view_id = result
+            if not view_id and context.get('line_type'):
+                if context.get('line_type') == 'customer':
+                    result = mod_obj.get_object_reference(cr, uid, 'account_voucher', 'view_vendor_receipt_form')
+                else:
+                    result = mod_obj.get_object_reference(cr, uid, 'account_voucher', 'view_vendor_payment_form')
+                result = result and result[1] or False
+                view_id = result
 
         res = super(account_voucher, self).fields_view_get(cr, uid, view_id=view_id, view_type=view_type, context=context, toolbar=toolbar, submenu=submenu)
         doc = etree.XML(res['arch'])
diff --git a/addons/account_voucher/voucher_payment_receipt_view.xml b/addons/account_voucher/voucher_payment_receipt_view.xml
index 5cf9b42be0b..01095d2f265 100644
--- a/addons/account_voucher/voucher_payment_receipt_view.xml
+++ b/addons/account_voucher/voucher_payment_receipt_view.xml
@@ -205,6 +205,7 @@
                             <group col="2" colspan="1">
                                 <group col="4" colspan="1" attrs="{'invisible':[('currency_id','=',False),('is_multi_currency','=',False)]}">
                                     <separator string="Currency Options" colspan="4"/>
+                                    <field name="is_multi_currency" invisible="1"/>
                                     <field name="payment_rate" required="1" on_change="onchange_rate(payment_rate, amount, currency_id, payment_rate_currency_id, company_id, context)" groups='base.group_extended' colspan="3"/>
                                     <field name="payment_rate_currency_id" groups='base.group_extended' colspan="1" nolabel="1" on_change="onchange_payment_rate_currency(currency_id, payment_rate, payment_rate_currency_id, date, amount, company_id, context)"/>
                                     <field name="paid_amount_in_company_currency" groups='base.group_extended' colspan="4" invisible="1"/>
@@ -356,6 +357,7 @@
                             <group col="2" colspan="1">
                                 <group col="4" colspan="1" attrs="{'invisible':[('currency_id','=',False),('is_multi_currency','=',False)]}">
                                     <separator string="Currency Options" colspan="4"/>
+                                    <field name="is_multi_currency" invisible="1"/>
                                     <field name="payment_rate" required="1" on_change="onchange_rate(payment_rate, amount, currency_id, payment_rate_currency_id, company_id, context)" groups='base.group_extended' colspan="3"/>
                                     <field name="payment_rate_currency_id" groups='base.group_extended' colspan="1" nolabel="1" on_change="onchange_payment_rate_currency(currency_id, payment_rate, payment_rate_currency_id, date, amount, company_id, context)"/>
                                     <field name="paid_amount_in_company_currency" groups='base.group_extended' colspan="4" invisible="1"/>
diff --git a/addons/mrp/mrp_view.xml b/addons/mrp/mrp_view.xml
index dafe399b583..eb1070ac941 100644
--- a/addons/mrp/mrp_view.xml
+++ b/addons/mrp/mrp_view.xml
@@ -522,6 +522,7 @@
             <field name="res_model">mrp.bom</field>
             <field name="domain">[('id','=',active_id)]</field>
             <field name="view_type">tree</field>
+            <field name="view_mode">tree</field>
             <field name="view_id" ref="mrp_bom_tree_view"/>
         </record>
         <record id="ir_BOM_structure" model="ir.values">
@@ -776,7 +777,7 @@
                             <field colspan="4" name="product_lines" nolabel="1" widget="one2many_list"/>
                         </page>
                         <page string="Extra Information">
-                            <field name="user_id"/> 
+                            <field name="user_id"/>
                             <field name="company_id" groups="base.group_multi_company" widget="selection"/>
                             <field name="priority" groups="base.group_extended"/>
                             <newline/>
@@ -972,7 +973,7 @@
                </data>
             </field>
         </record>
-        
+
         <act_window
             context="{'search_default_product_id': [active_id]}"
             id="act_product_manufacturing_open"
@@ -980,13 +981,14 @@
             view_id="mrp_production_tree_view"
             res_model="mrp.production"
             src_model="product.product"/>
-            
+
         <act_window
             id="action_product_bom_structure"
             name="Product BoM Structure"
             domain="[('product_id', '=', active_id),('bom_id','=',False)]"
             context="{'default_product_id': active_id}"
             view_type="tree"
+            view_mode="tree"
             view_id="mrp_bom_tree_view"
             res_model="mrp.bom"
             src_model="product.product"
diff --git a/addons/project/project.py b/addons/project/project.py
index cc29ebdee94..0046dea4409 100644
--- a/addons/project/project.py
+++ b/addons/project/project.py
@@ -880,14 +880,24 @@ class task(osv.osv):
         self.write(cr, uid, ids, {'state': 'draft'}, context=context)
         return True
 
+
+    def _delegate_task_attachments(self, cr, uid, task_id, delegated_task_id, context=None):
+        attachment = self.pool.get('ir.attachment')
+        attachment_ids = attachment.search(cr, uid, [('res_model', '=', self._name), ('res_id', '=', task_id)], context=context)
+        new_attachment_ids = []
+        for attachment_id in attachment_ids:
+            new_attachment_ids.append(attachment.copy(cr, uid, attachment_id, default={'res_id': delegated_task_id}, context=context))
+        return new_attachment_ids
+        
+
     def do_delegate(self, cr, uid, ids, delegate_data={}, context=None):
         """
         Delegate Task to another users.
         """
         assert delegate_data['user_id'], _("Delegated User should be specified")
-        delegrated_tasks = {}
+        delegated_tasks = {}
         for task in self.browse(cr, uid, ids, context=context):
-            delegrated_task_id = self.copy(cr, uid, task.id, {
+            delegated_task_id = self.copy(cr, uid, task.id, {
                 'name': delegate_data['name'],
                 'project_id': delegate_data['project_id'] and delegate_data['project_id'][0] or False,
                 'user_id': delegate_data['user_id'] and delegate_data['user_id'][0] or False,
@@ -898,6 +908,7 @@ class task(osv.osv):
                 'child_ids': [],
                 'work_ids': []
             }, context=context)
+            self._delegate_task_attachments(cr, uid, task.id, delegated_task_id, context=context)
             newname = delegate_data['prefix'] or ''
             task.write({
                 'remaining_hours': delegate_data['planned_hours_me'],
@@ -911,8 +922,8 @@ class task(osv.osv):
             
             message = _("The task '%s' has been delegated to %s.") % (delegate_data['name'], delegate_data['user_id'][1])
             self.log(cr, uid, task.id, message)
-            delegrated_tasks[task.id] = delegrated_task_id
-        return delegrated_tasks
+            delegated_tasks[task.id] = delegated_task_id
+        return delegated_tasks
 
     def do_pending(self, cr, uid, ids, context={}):
         self.write(cr, uid, ids, {'state': 'pending'}, context=context)