Author: bdanee88

Description:
If I try to rollback to a version with hidden username/IP, I get the following permission error (even if I am an admin):

You do not have permission to do that, for the following reason:
The last revision by a different user has been deleted

You can see an affected page history here[1].

To reproduce the error, do the following:

1. Find a page :)
2. Edit the page logged out
3. Log in, and edit the page now
4. Hide the IP of the logged out edit
5. Try to rollback the logged in edit

The error may occour if you edit with an other account instead of logged out. I haven't tried it.

[1] http://hu.wikipedia.org/w/index.php?title=Szerkeszt%C5%91:Dani/eu&action=history

Version: unspecified
Severity: normal