Failed to edit permission for Calendar

• Type: Regression Bug
• Status: Verified
• Resolution: Unresolved
• Affects Version/s: Master
• Fix Version/s: None
• Component/s: Application Security > Permissions
• Labels: None
• Fix Priority: 2

Step to reproduce:
1. Login portal as Admin
2. Add new user test1
3. Go to My Profile
4. Add widgets Calendar
5. Go to Calendar>Permissions, Assert Permissions checked for User
6. Logout current user and Login with test1
7. Open http://localhost:8080/web/test
8. Go to Calendar>Permissions
9. Edit any permissions and Save

Expected result: Save successfully
Actual result: Pop up 'Error:Your request failed to complete.', edit failed.