[FIX] web: prevent double-click on statusbar

When double-clicking on the statusbar widget, two calls to write are
performed. This can cause unwanted behavior, and when the `write` method
takes a lot of time to process, it's not possible to prevent it
server-side.

Courtesy of @gurneyalex and @aab-odoo

Closes #13134
opw-686025

FORWARD-PORT UP TO SAAS-6!

addons/web/static/src/js/view_form.js

@@ -6145,10 +6145,14 @@ instance.web.form.FieldStatus = instance.web.form.AbstractField.extend({
             return fields;
         });
     },
-    on_click_stage: function (ev) {
+    on_click_stage: _.debounce(function (ev) {
         var self = this;
         var $li = $(ev.currentTarget);
+        var ul = $li.closest('.oe_form_field_status');
         var val;
+        if (ul.attr('disabled')) {
+            return;
+        }
         if (this.field.type == "many2one") {
             val = parseInt($li.data("id"), 10);
         }
@@ -6165,13 +6169,16 @@ instance.web.form.FieldStatus = instance.web.form.AbstractField.extend({
                 this.view.recursive_save().done(function() {
                     var change = {};
                     change[self.name] = val;
+                    ul.attr('disabled', true);
                     self.view.dataset.write(self.view.datarecord.id, change).done(function() {
                         self.view.reload();
+                    }).always(function() {
+                        ul.removeAttr('disabled');
                     });
                 });
             }
         }
-    },
+    }, 300),
 });
 
 instance.web.form.FieldMonetary = instance.web.form.FieldFloat.extend({