MW wasn't picking up my i18n files until I commented out the following line in Nuke.php
$wgExtensionMessagesFiles['NukeAlias'] = $dir . 'Nuke.alias.php';
Looking at the file, I can't see right away why this is so.
Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=44294