Blank page when members of confluence-administrators exit from the editor in a restricted pages

In Confluence when a member of "confluence-administrators" group can click "Edit" button and start editing the page. They receive a blank page when "cancel" button is clicked.

Steps to replicate

1. Make User B as the member of confluence-administrators group
2. User A creates a page and applies a restriction to a specific group (Ensure that the User B is not part of this group)
3. User B is Not a member of that group but Is a Space Administrator for the space
4. User B goes to the page and the edit function is enabled
5. User B Clicks Edit
6. User B Clicks Cancel

Expected Results

Exit from the editor normally.

h3 Observed Result
Received a blank page