[13:44:17] <paladox>	 oh!
[13:44:46] <paladox>	 With MW 1.41 I get:
[13:44:49] <paladox>	 https://www.irccloud.com/pastebin/4Pn56zYJ/
[13:45:10] <paladox>	 On MW 1.42 I get:     [mNamespaceIds:protected] => 
[13:45:12] <paladox>	 (empty)
[13:45:24] <paladox>	 this is using \MediaWiki\MediaWikiServices::getInstance()->getContentLanguage()
[13:45:40] <paladox>	 Whilst I get:
[13:45:43] <paladox>	 https://www.irccloud.com/pastebin/QjJf6Xtu/
[13:45:51] <paladox>	 On both MW 1.42/MW 1.41
[18:48:44] <paladox>	 I found something interesting
[18:49:30] <paladox>	 $this->language in https://github.com/wikimedia/mediawiki/blob/master/includes/title/MediaWikiTitleCodec.php doesn't seem to be getting the ContentLanguage we set where as when I use \MediaWiki\MediaWikiServices::getInstance()->getContentLanguage()->getNamespaceIds() directly it works.
[19:12:59] <Nikerabbit>	 paladox: setting wgContLang so late is not going to work for services already created
[19:16:00] <Nikerabbit>	 paladox: https://gerrit.wikimedia.org/g/mediawiki/core/+/94d4c10b2c9eb9696698c79d29291f35bd1cbc16/tests/phpunit/MediaWikiIntegrationTestCase.php#1468 has a tip, or call resetServices or resetServiceForTesting directly
[19:23:54] <paladox>	 Nikerabbit: ohh? https://github.com/SemanticMediaWiki/SemanticMediaWiki/blob/a3fa98cb6250814f52f020a7895ba7578e20074c/tests/phpunit/JSONScriptTestCaseRunner.php#L151 is what we do now.
[19:33:41] <paladox>	 not sure where to put that or do it
[20:11:25] <paladox>	 oh doing:
[20:11:28] <paladox>	 https://www.irccloud.com/pastebin/HTnYNtOA/
[20:11:33] <paladox>	 in there appears to fix it?
[20:15:58] <Nikerabbit>	 seems brittle, maybe just reset all services instead?
[20:20:14] <paladox>	 Nikerabbit: reset all services? Inside that callback? Also how'd I do that?
[20:21:47] <Reedy>	 MediaWikiTestCase::resetServices()
[20:22:06] <Reedy>	 Depending on your test class inheritance tree..
[20:26:15] <paladox>	 oh thanks!
[20:27:58] <paladox>	 I'm not sure I can use resetServices as we don't call any of the functions in there that sets a service.
[20:38:23] <paladox>	 oh I only needed:
[20:38:24] <paladox>	 ```
[20:38:28] <paladox>	 https://www.irccloud.com/pastebin/PVIAfNpr/
[21:54:47] <Platonides>	 seems to be in line with the suspicion I had yesterday :D