I made the above changes and pushed it live. It should now function as you expected. If there are any questions or concerns, please do not hesitate to let me know!

Lets try to keep all the issues in the bug:

Thank you so much!
We do have a question: there were lots of pages prefixed "Википеди:" at
os.wiki. We can't find them now. Are the lost absolutely or there is a way
to find them at some other namespace or some kind of history?
Some were really important: e. g. our "common work of the month", a very
effective project.

Sincerely,
Viatcheslav (Amikeco)

bugs wrote:

Probably need to run "maintenance/namespaceDupes.php" per bug 16887 / bug 12686 / bug 6313

I do think this has now been fixed. Please check and if not, let me know by replying to the bug.

amikeco wrote:

(In reply to comment #4)

I do think this has now been fixed. Please check and if not, let me know by
replying to the bug.

All links to the pages previously prefixed "Википеди:" are red now. It may be most easily seen by the red links in the upper part of the Main page http://os.wikipedia.org/ — these were the links to the Embassy.
Some of the lost pages were in active use, we need them back.

Thank you in advance.

I ran some changes, but it did not fix it completely.

As far as I know, nothing is lost, just will not work right until we fix it. I am working with brion to get this fixed.

Brion:

I went ahead and ran:

php maintenance/namespaceDupes.php --prefix=Википеди --fix
Checking prefix "Википеди" vs namespace 0

Looks good!

I am not sure if the issue is fixed.

amikeco wrote:

I still don't see the lost pages. Say, [[:os:Википеди:Хъазуатон куыст]] or [[Википеди:Минæварад]].
The older prefixed as Wikipedia: are in their right place (e. g. Википеди:Афыст).

Ok, Brion, I am going to assign this to you for the moment. Feel free to comment on what exactly I should do to fix it, and kick it back. (Or just do it and I will take notes for next time, but make sure to assign it back so I know what to do!)

I ran php maintenance/namespaceDupes.php --prefix=Википеди --fix --wiki oswiki

The pages have been moved from Википеди:Title to Википеди-Title.

Full details are at http://p.defau.lt/?i_uOCkl_7sfAFG5rQ1GCzQ

amikeco wrote:

(In reply to comment #10)

The pages have been moved from Википеди:Title to
Википеди-Title.

Ok. Thank you very much. I see the pages and I will rename or delete them now. A good chance to see them all.

Should the bug be marked now as CLOSED? The issue seems to be solved now.

THIS BUG CONTAINS UNICODE :O
(test)

Sorry for the spam, testing bug 9995.