[FIX] assign random contact : not anymore

bzr revid: tfr@openerp.com-20110324160929-2xqdk28abdzi8sol

addons/crm/wizard/crm_lead_to_opportunity.py

@@ -96,6 +96,8 @@ Leads Could not convert into Opportunity"))
 
     def _convert(self, cr, uid, ids, lead, partner_id, stage_ids, context=None):
         leads = self.pool.get('crm.lead')
+        address_id = False
+        if partner_id:
             address_id = self.pool.get('res.partner.address').search(cr, uid,
                                                                  [('partner_id', '=', partner_id)],
                                                                  order='create_date desc',