diff --git a/tryton/gui/window/view_form/model/group.py b/tryton/gui/window/view_form/model/group.py
index e7783b44ca..f1a91b46ca 100644
--- a/tryton/gui/window/view_form/model/group.py
+++ b/tryton/gui/window/view_form/model/group.py
@@ -206,7 +206,7 @@ class Group(SignalEvent, list):
         for fnct in self.on_write:
             try:
                 res += RPCExecute('model', self.model_name, fnct, ids,
-                    context=self.context)
+                    main_iteration=False, context=self.context)
             except RPCException:
                 return []
         return list({}.fromkeys(res))
@@ -395,7 +395,7 @@ class Group(SignalEvent, list):
         if len(new) and len(to_add):
             try:
                 values = RPCExecute('model', self.model_name, 'default_get',
-                    to_add.keys(), context=self.context)
+                    to_add.keys(), main_iteration=False, context=self.context)
             except RPCException:
                 return False
             for name in to_add:
diff --git a/tryton/gui/window/view_form/model/record.py b/tryton/gui/window/view_form/model/record.py
index 2f0b6c0820..f8ea4000ec 100644
--- a/tryton/gui/window/view_form/model/record.py
+++ b/tryton/gui/window/view_form/model/record.py
@@ -257,7 +257,7 @@ class Record(SignalEvent):
         values = self.get()
         try:
             RPCExecute('model', self.model_name, 'pre_validate', values,
-                context=self.context_get())
+                main_iteration=False, context=self.context_get())
         except RPCException:
             return False
         return True
@@ -268,7 +268,8 @@ class Record(SignalEvent):
                 value = self.get()
                 try:
                     res, = RPCExecute('model', self.model_name, 'create',
-                        [value], context=self.context_get())
+                        [value], main_iteration=False,
+                        context=self.context_get())
                 except RPCException:
                     return False
                 old_id = self.id
@@ -282,7 +283,8 @@ class Record(SignalEvent):
                     context['_timestamp'] = self.get_timestamp()
                     try:
                         RPCExecute('model', self.model_name, 'write',
-                            [self.id], value, context=context)
+                            [self.id], value, main_iteration=False,
+                            context=context)
                     except RPCException:
                         return False
             self._loaded.clear()
@@ -316,7 +318,7 @@ class Record(SignalEvent):
         reload_ids = list(reload_ids)
         try:
             RPCExecute('model', record.model_name, 'delete', list(record_ids),
-                context=ctx)
+                main_iteration=False, context=ctx)
         except RPCException:
             return False
         if reload_ids:
@@ -327,7 +329,8 @@ class Record(SignalEvent):
         if len(self.group.fields):
             try:
                 vals = RPCExecute('model', self.model_name, 'default_get',
-                    self.group.fields.keys(), context=self.context_get())
+                    self.group.fields.keys(), main_iteration=False,
+                    context=self.context_get())
             except RPCException:
                 return
             if (self.parent
@@ -348,7 +351,8 @@ class Record(SignalEvent):
     def rec_name(self):
         try:
             return RPCExecute('model', self.model_name, 'read', [self.id],
-                ['rec_name'], context=self.context_get())[0]['rec_name']
+                ['rec_name'], main_iteration=False,
+                context=self.context_get())[0]['rec_name']
         except RPCException:
             return ''
 
@@ -495,8 +499,9 @@ class Record(SignalEvent):
             attr = PYSONDecoder().decode(attr)
         args = self._get_on_change_args(attr)
         try:
-            res = RPCExecute('model', self.model_name,
-                'on_change_' + fieldname, args, context=self.context_get())
+            res = RPCExecute('model', self.model_name, 'on_change_' +
+                fieldname, args, main_iteration=False,
+                context=self.context_get())
         except RPCException:
             return
         self.set_on_change(res)
@@ -527,7 +532,8 @@ class Record(SignalEvent):
         if fieldnames:
             try:
                 result = RPCExecute('model', self.model_name, 'on_change_with',
-                    values, list(fieldnames), context=self.context_get())
+                    values, list(fieldnames), main_iteration=False,
+                    context=self.context_get())
             except RPCException:
                 return
             self.set_on_change(result)
@@ -538,7 +544,7 @@ class Record(SignalEvent):
             try:
                 result = RPCExecute('model', self.model_name,
                     'on_change_with_' + fieldname, values,
-                    context=self.context_get())
+                    main_iteration=False, context=self.context_get())
             except RPCException:
                 return
             self.group.fields[fieldname].set_on_change(self, result)
@@ -556,7 +562,8 @@ class Record(SignalEvent):
         args = self._get_on_change_args(autocomplete)
         try:
             res = RPCExecute('model', self.model_name, 'autocomplete_' +
-                fieldname, args, context=self.context_get())
+                fieldname, args, main_iteration=False,
+                context=self.context_get())
         except RPCException:
             # ensure res is a list
             res = []
@@ -571,7 +578,7 @@ class Record(SignalEvent):
                     'search_count', [
                         ('resource', '=',
                             '%s,%s' % (self.model_name, self.id)),
-                        ])
+                        ], main_iteration=False)
             except RPCException:
                 return 0
         return self.attachment_count