[FIX] base: corrected automated action onchange and write

When having an automated action which
triggered upon changing a field to write on another
(no python code, but operatiing with ir.server.object.lines)

Before this commit, the onchange was not performed.
This was because there was no active id
(in fact the code did not take object(<NewId>) into consideration)

After this commit, the onchange is performed.

OPW 801424

odoo/addons/base/ir/ir_actions.py

@@ -851,7 +851,13 @@ def run_action_object_write(self, action, eval_context=None):
             else:
                 ref_id = int(ref)
 
-        self.env[model].browse(ref_id).write(res)
+        if self._context.get('onchange_self'):
+            record_cached = self._context['onchange_self']
+            for field, new_value in res.iteritems():
+                record_cached[field] = new_value
+        else:
+            self.env[model].browse(ref_id).write(res)
+
 
     @api.model
     def run_action_object_create(self, action, eval_context=None):
@@ -975,6 +981,8 @@ def run(self):
 
             elif hasattr(self, 'run_action_%s' % action.state):
                 active_id = self._context.get('active_id')
+                if not active_id and self._context.get('onchange_self'):
+                    active_id = self._context['onchange_self']._origin.id
                 active_ids = self._context.get('active_ids', [active_id] if active_id else [])
                 for active_id in active_ids:
                     # run context dedicated to a particular active_id