Steps to Reproduce: 1. Open the wiki of The Document Foundation and login 2. Open Special:Preferences (個人設定 in Japanese) https://wiki.documentfoundation.org/Special:Preferences Actual Results: appear error Fatal exception of type MWException Expected Results: NO error can edit config...
Seems to be a bug in MediaWiki, filed as https://bugzilla.wikimedia.org/show_bug.cgi?id=42355 Changed the configuration in our wiki to make it work again.
(In reply to comment #1) > Seems to be a bug in MediaWiki, filed as > https://bugzilla.wikimedia.org/show_bug.cgi?id=42355 > > Changed the configuration in our wiki to make it work again. Thanks for fixing this! -> v.