We at Wikimedia never noticed this issue until we upgraded libxml2 on one of our servers as part of an OS upgrade, but apparently the interwebs knew about this since at least May 2010. Hat tip
to http://deriksmith.livejournal.com/57617.html , where I found this fix.
Breaks unit tests as below, not going to be able to fix them before I disappear for the evening, so might aswell leave trunk clean
ArticleTablesTest testbug14404
Error:
ArticleTablesTest::testbug14404
Undefined offset: 0
/home/ci/cruisecontrol-bin-2.8.3/projects/mw/source/tests/phpunit/includes/ArticleTablesTest.php:31
/home/ci/cruisecontrol-bin-2.8.3/projects/mw/source/tests/phpunit/MediaWikiTestCase.php:60
/home/ci/cruisecontrol-bin-2.8.3/projects/mw/source/tests/phpunit/MediaWikiPHPUnitCommand.php:20
/home/ci/cruisecontrol-bin-2.8.3/projects/mw/source/tests/phpunit/phpunit.php:60
ParserTests testParserTest #552 - testParserTest with data set #551
Failure:
ParserTests::testParserTest with data set #551 ('RAW magic word', '{{RAW:QUERTY}}', '<p><a href="/index.php?title=Template:QUERTY&action=edit&redlink=1" class="new" title="Template:QUERTY (page does not exist)">Template:QUERTY</a>
</p>', '', '')
RAW magic word
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
-<p><a href="/index.php?title=Template:QUERTY&action=edit&redlink=1" class="new" title="Template:QUERTY (page does not exist)">Template:QUERTY</a>
+<p><a href="/index.php?title=Template:RAW:QUERTY&action=edit&redlink=1" class="new" title="Template:RAW:QUERTY (page does not exist)">Template:RAW:QUERTY</a>
</p>
/home/ci/cruisecontrol-bin-2.8.3/projects/mw/source/tests/phpunit/includes/parser/NewParserTest.php:545
/home/ci/cruisecontrol-bin-2.8.3/projects/mw/source/tests/phpunit/MediaWikiTestCase.php:60
/home/ci/cruisecontrol-bin-2.8.3/projects/mw/source/tests/phpunit/MediaWikiPHPUnitCommand.php:20
/home/ci/cruisecontrol-bin-2.8.3/projects/mw/source/tests/phpunit/phpunit.php:60
This seems to disable PST for <includeonly>...</includeonly> in addition to the <includeonly><nowiki>...</nowiki></includeonly> that the bug is about.
This was caught by a parser test case, but the test case was changed to match... seems like the wrong change?
Also failed to update Preprocessor_HipHop.hphp to match the other two preprocessor classes.
* Change the preprocessor to insert strip items for <ignore> nodes during pre-save-transform, just like <comment> nodes are handled already. This effectively disables all pre-save-transform steps inside <includeonly> tags.
* Adapt parser tests to the new behavior.
To be able to search for headline-closing equal sign even when
there are comments between the last = and the linebreak, there are
some position values appended to the recent domParts. This works
well with the first comment, but as soon as a second one comes,
the commentEnd value is set to $wsEnd instead of $endPos.
Patch from Bergi
* Fixed preg_replace /e usage in Sanitizer and UserMailer. This was already against policy.
* Removed the __get()-based lazy initialisation of $this->xpath in PPNode_DOM. This caused a notice in HipHop, and is also inefficient due to the need for dynamic properties.
* Fixed the assertion in PPNode_DOM::splitHeading(), flagged by Inez Korczynski. It was obviously completely broken, converting a non-existent property to boolean, and it only appeared to work in Zend by accident.
* It was not necessary to preserve the $stripState->general->setPair() interface since it wasn't used by any extensions.
* Moved StripState to its own file.
* Refactored serialiseHalfParsedText() and unserialiseHalfParsedText() so that the bulk of the functionality is in the relevant modules, instead of using scary direct access to object member variables. Made it support the new StripState. It seemed like a lot of work to go to to support an "emergency optimisation" feature in Cite. Cite updates will be in a subsequent commit.
* Fixed spelling of serialiseHalfParsedText() and unserialiseHalfParsedText(), there is unavoidable interface breakage anyway, due to cache object versioning.
* Moved transparent tags to their own function, as requested in a fixme comment.
* Added documentation for markerSkipCallback().
* Removed OnlyIncludeReplacer, unused since MW 1.12.
Changes from the original patch (r46936):
* Add versioning to the cache, so the cache can be purged.
* Only cache preprocessor output for input of over a certain amount (default of 1000 bytes).
