[FIX] Always give the cursor back its commit method

unserialize_field/ir_model_fields.py

@@ -35,6 +35,7 @@ class ir_model_fields(orm.Model):
         commit_org = cr.commit
         cr.commit = lambda *args: None
 
+        try:
             for this in self.browse(cr, uid, ids, context=context):
                 pool_obj = self.pool.get(this.model_id.model)
                 self.create_database_column(cr, uid, pool_obj, this.name,
@@ -53,8 +54,9 @@ class ir_model_fields(orm.Model):
                                                this.serialization_field_id.name,
                                                this.name, context=context)
                     offset += 1       
-        
+        finally:
             cr.commit = commit_org    
+
         return True
 
     def create_database_column(self, cr, uid, pool_obj, field_name,