Last modified: 2009-06-15 12:13:25 UTC
Steps to reproduce: 1. Create a page with "&" in the title, like "you & me" (in the URL, it's "you_%26_me") 2. Delete that page 3. Go to Special:Undelete/you & me 4. Click on the link to the deleted revision. 5. No deleted revision is shown, instead the deletion log. Expected behaviour: Show deleted revision. The Link is broken: Special:Undelete&target=you_%2526_me×tamp=.... The correct link is: Special:Undelete&target=you+%26+me×tamp=... Note that "+" vs. "_" doesn't matter. It the "%2526" as opposed to "%26" part that breaks the link.
Fixed in r51889. Thanks.