[Backend] Unknown User (User Key) on Confluence personal space after deleting/recreating user account

Summary

Whenever a user is deleted and recreated later, the space name is not updated again to reflect the user and shows Unknown User (User Key) instead

Environment

Confluence Cloud

Steps to Reproduce

1. Create a personal space and a few pages within the space
2. Delete the user account that created the space and pages
3. Recreate user with same e-mail address
4. View personal space again

Expected Results

Personal space title shows full name
No 'Unknown User' showing

Actual Results

Personal space title shows (Unknown User)
Pages do show the user's name properly though

Workaround

None