Last modified: 2014-03-12 23:37:32 UTC
For some reason it appears that most of the messages for Mediawiki:ipbreasonotherlist have fallen out of the extension leaving it blank (it is the 'other reason' select box which for locking an account, it is also the default seen when you go to the page.
I've created the message on Commons and Meta ( https://meta.wikimedia.org/wiki/MediaWiki:Ipbreasonotherlist ) as a stop gap because I saw them there but you can see the missing message on English Wikipedia still https://en.wikipedia.org/wiki/Special:CentralAuth/Jalexander.
I haven't dug deeply to figure out when it was removed but the current version of the extension appears to have 2 translations for it but no english version.
Fixed in https://gerrit.wikimedia.org/r/118341