Alias translation fatal error if first special page alias translation is the same as an element in the fallback chain: Exception: Something missing from values: Array
This happens only if the aliases have been translated manually rather than using the special page as one should, but after such an edit the translators are very confused.
See recent example (I think) in URL; old example was http://translatewiki.net/w/i.php?title=MediaWiki:Sp-translate-data-SpecialPageAliases/id&diff=1662616&oldid=1662279&curid=894890
Example fix: 0c0458d35ab594a096a93a7ef94a74a18fefa12d
Whiteboard: aklapper-moreinfo
URL: https://translatewiki.net/w/i.php?title=MediaWiki%3ASp-translate-data-SpecialPageAliases%2Fba&diff=4246696&oldid=3572132