When a revision can't be found[1], Code Review just dumps you back into the path folder showing the table review which can be confusing and should offer some sort of message explaining that the revision can't be found.
[1]. http://www.mediawiki.org/wiki/Special:Code/MediaWiki/cheese [2]
[2]. Which is impossible to happen due to revisions needing to be numbers, but if i used a number, Its possible that it can be done so this is only for demo purposes.
Version: unspecified
Severity: enhancement