Group content menu is not respecting weight we set

Problem/Motivation

Group content menu is not respecting weight we set.

Steps to reproduce

In any of the group content menu:

1. Add couple of menu items. Then again add few more items.
2. Check menu on page. Now lets try to change order by rearranging from menu listing.
3. It won't display in same order in page.

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes