When deleting a "No limitation" Role that has been added after other (with limitations), the assignment is not cleared completely - previous limitations are displayed.
Steps to reproduce:
1. Go to Admin/Roles
2. Create new Role
3. Go to Assignments and choose "Assign users/groups"
4. Select a user and "Sections" limitations: Standard, Users
6. Add the same user to the Role, this time without Limitation (No limitation option)
Result so far:
Only the user with "No limitation" row is displayed in the Assignments list
7. Remove the displayed assignment
There are no assignments for the Role
The assignments added before (Standard, Users sections) are visible.