After going to the translation interface in Wikidata (Special:Translate), choosing an message group and clicking on an outdated translation, I noticed that the "Show difference" (MediaWiki:Tux-editor-outdated-warning-diff-link) link is missing.

Normally, like on translatewiki.org, this link is shown right after the "This translation may need to be updated" (MediaWiki:Tux-editor-outdated-warning) message. Even the qqq message for it says that "This message is followed by the link which is labeled tux-editor-outdated-warning-diff-link ("Show differences")". Obviously, the translation extension is not working as it should on Wikidata then.

Steps to reproduce:

1. Go to http://www.wikidata.org/w/index.php?title=Special:Translate&group=page-Wikidata%3AGlossary&filter=&action=translate&language=is
2. Click on an message that is outdated.
3. The "This translation may need to be updated." message will appear, but the link "Show difference" will not follow.

Since this bug is very counter-productive I have taken the liberty of marking it as major.

Version: unspecified
Severity: major