Category 'Feed-Creator' permission does not allow new feed creation under category

Steps to reproduce:
1) Create a category (say CatA)
2) Assign a user (say userA) to have the 'Feed-Creator' entity permission
3) Log out
4) Log in as user A
5) Start creating a feed and select category catA from dropdown list.
6) Save the feed after going through all the stepper steps.

Observation: Feed save operation fails.
Expected: Feed save should succeed.

Stacktrace attached:{{ error-log-cat-feed-creation.txt}}

Note: UserA belongs to a group that has the functional permission to edit feeds (which allows creating feeds).