Last modified: 2013-07-10 22:59:06 UTC
Try adding: "Members of IFIP Working Group 2.1" as a category. Autosuggest matches it to the non-existing "Members of IFIP Working Group 2" and when saving, nothing is saved.
Change 73116 had a related patch set uploaded by Robmoen: When normalizing category titles with mw.Title, use getMain method https://gerrit.wikimedia.org/r/73116
Change 73116 merged by jenkins-bot: When normalizing category titles with mw.Title, use getMain method https://gerrit.wikimedia.org/r/73116
This should be fixed by the above, which we will deploy shortly. Marking as fixed; sorry for the disruption.
Categories with extensions should now be properly inserted in the article. It should be noted that there is a separate bug where after a successful edit, the 'catlinks' element is not refreshed which makes it appear that nothing is saved.