Steps to reproduce the issue

• Create a new menu link
• Select a new parent for the link
• Select any type of menu link
• The menu link parent is rest

Expected result

The previously link parent selected stay selected

Actual result

The menu link parent is reset

System information (as much as possible)

J3.9.28
Fresh install
Ext : Akeeba/RSForms/Regular labs sliders/JCE

Additional comments

I know it works like that from ages but can we moveon that (don't have tested on J!4)