Incorrect behaviour in page restrictions

Summary

Incorrect behaviour when a child's page restriction is changed due to granting access to a user.

Steps to Reproduce

• There are 2 users, User A and User B.
• Create 2 pages; a parent page and a child page, Page A and Page B respectively.
• Restriction on Page A is such that only User A has access.
• There are no restrictions on Page B.

1. User B requests access on Page B; an email is sent to the Confluence admin.
2. The Confluence admin grants access to User B.

Expected Results

User B should not be able to access Page B as the parent's (Page A) restrictions prohibits it. User A should still have access to Page B.

Actual Results

• The restriction on Page B changes from unrestricted to allow access to only User B.
• User B still cannot access Page B as the parent page disallows it. However, User A has no access to Page B.

This is an issue as all users who had access to a child page are now disallowed.