Unable to remove group from Project Role and People

Summary

Unable to remove group from Project Role and People page when the alphabet case is not matching with the group name. This is happen when admin adding the group from Assign Default Groups for Project Role configuration.

Steps to Reproduce

1. Create a group name Abc
2. Then, go to System > Project Roles
3. Click Manage Default Members for any roles.
4. Click Edit for Default Groups.
5. Then, type in abc for Add group(s) to project role: section.
6. Then, try to remove the group at the right side by ticking the group and click Remove

Expected Results

The group will be removed.

Actual Results

The group can't be removed. Even when return to view the roles setting, under Default Groups it will display is lowercase letter as per key in during step 5.
This will affect for People page too if the group already added to the People configuration.

Workaround

  No workaround present at the moment.