rebuildtextindex.php works correctly when you truncate the searchindex table before you run rebuildtextindex.php. Adding this step to rebuildtextindex.php should solve the issue.

Thanks for taking the time to report this!

In case you are interested to provide a patch, see https://www.mediawiki.org/wiki/Developer_access

https://github.com/Orain/ansible-playbook/issues/87
As far as I can tell the fix is simple
https://github.com/Orain/mediawiki-core/commit/ff2a9f6a22e48334b1981e4bb35d9ddde1e66251#diff-e24acac5a0216a58d96c862f86586698
Will submit a patch to gerrit when I find time!!!

If you could do that, it would be amazing!

Your patch adds

$this->clearSearchIndex();

to the "mysql" condition of function execute() of maintenance/rebuildtextindex.php.

This solves the issue for me!

Change 186973 had a related patch set uploaded (by Addshore):
Run clearSearchIndex when mysql in rebuildTextIndex

https://gerrit.wikimedia.org/r/186973

Patch-For-Review

Interesting note, this has been broken since 2009!
https://github.com/wikimedia/mediawiki/commit/798cfc5ade4d7706173b3162adfca77bad560465#diff-e24acac5a0216a58d96c862f86586698R53

Change 186973 merged by jenkins-bot:
Run clearSearchIndex when mysql in rebuildTextIndex

https://gerrit.wikimedia.org/r/186973

Thanks a bunch, guys!

Can this bugfix still be backported to the supported branches? 1.24 and especially the 1.23 LTS branch will still be around for some time.

Current LTS is 1.23. 1.24 is not LTS but will be supported until November 2015

@MarkAHershberger may decide. It should apply cleanly to those branches.

Thanks for pointing this out; it is not much of an effort and it would solve the bug.

CC'ing @greg as this is a backport request for tarballs. (Wondering whether a dedicated "backport request" ticket against the MediaWiki-Tarball-Backports project would not be better, in theory. Whatever workflow works.)