diff --git a/odoo/addons/test_new_api/models.py b/odoo/addons/test_new_api/models.py
index ab8ebdb1ac4..2d973c04ef4 100644
--- a/odoo/addons/test_new_api/models.py
+++ b/odoo/addons/test_new_api/models.py
@@ -320,6 +320,10 @@ class Related(models.Model):
     related_name = fields.Char(related='name')
     related_related_name = fields.Char(related='related_name')
 
+    message = fields.Many2one('test_new_api.message')
+    message_name = fields.Text(related="message.body", related_sudo=False, string='Message Body')
+    message_currency = fields.Many2one(related="message.author", string='Message Author')
+
 
 class ComputeInverse(models.Model):
     _name = 'test_new_api.compute.inverse'
diff --git a/odoo/addons/test_new_api/tests/test_onchange.py b/odoo/addons/test_new_api/tests/test_onchange.py
index a87006c76cb..7caf433a467 100644
--- a/odoo/addons/test_new_api/tests/test_onchange.py
+++ b/odoo/addons/test_new_api/tests/test_onchange.py
@@ -425,3 +425,32 @@ class TestOnChange(common.TransactionCase):
                  'size': email.size,
              })]
         )
+
+    def test_onchange_related(self):
+        value = {
+            'message': 1,
+            'message_name': False,
+            'message_currency': 2,
+        }
+        field_onchange = {
+            'message': '1',
+            'message_name': None,
+            'message_currency': None,
+        }
+
+        onchange_result = {
+            'message_name': 'Hey dude!',
+            'message_currency': (1, 'Administrator')
+        }
+
+        self.env.cache.invalidate()
+        Message = self.env['test_new_api.related']
+        result = Message.onchange(value, ['message', 'message_name', 'message_currency'], field_onchange)
+
+        self.assertEqual(result['value'], onchange_result)
+
+        self.env.cache.invalidate()
+        Message = self.env(user=self.env.ref('base.user_demo').id)['test_new_api.related']
+        result = Message.onchange(value, ['message', 'message_name', 'message_currency'], field_onchange)
+
+        self.assertEqual(result['value'], onchange_result)
diff --git a/odoo/models.py b/odoo/models.py
index 68efa22c314..335098311af 100644
--- a/odoo/models.py
+++ b/odoo/models.py
@@ -4985,15 +4985,16 @@ class BaseModel(MetaModel('DummyModel', (object,), {'_register': False})):
         done = set()
 
         # dummy assignment: trigger invalidations on the record
-        for name in todo:
-            if name == 'id':
-                continue
-            value = record[name]
-            field = self._fields[name]
-            if field.type == 'many2one' and field.delegate and not value:
-                # do not nullify all fields of parent record for new records
-                continue
-            record[name] = value
+        with env.do_in_onchange():
+            for name in todo:
+                if name == 'id':
+                    continue
+                value = record[name]
+                field = self._fields[name]
+                if field.type == 'many2one' and field.delegate and not value:
+                    # do not nullify all fields of parent record for new records
+                    continue
+                record[name] = value
 
         result = {}
         dirty = set()