In UI15, Security Admin is removed as a role immediately after elevating privileges using the Elevate Privilege popup page and after instance url is reloaded/refreshed

At times, the security_admin role is lost immediately after elevating privileges using the 'Elevate Privilege' popup dialog.

This issue happens inconsistently and hard to reproduce.

1. Log in as a user with the security_admin role.
2. In the upper right, click the arrow next to the user name and select Elevate Roles.
   
   
   
   
3. Select the security_admin option..
4. Click OK.
5. Perform steps 2-4 above from any existing ACL form record.
   Note that the security_admin role is elevated that one time. The Elevate Privilege popup, however, still shows the security_admin role as cleared. 
6. Move away from the ACL form record, for example, go to ACL list.
   Note that the security_admin role is immediately revoked. Verify by checking that the New button is absent in the ACL list.

There are two workaround options:

• Click on the padlock one more time and re-elevate again
• Switch to UI16