[06:27:53] <Nemo_bis>	 Reedy: but the string "ApiErrorFormatter::getDummyTitle" should clearly not end up there
[06:42:13] <legoktm>	 wow, that screenshot is a bunch of problems going wrong
[06:42:26] <legoktm>	 AbuseFilter is blocking the upload
[06:42:55] <legoktm>	 The link in the AF message tries to link to the talk page, except Special:UploadWizard can't have a talk page. So it uses BadTitle
[06:43:36] <legoktm>	 Something in BadTitle goes wrong, so there are two colons :: in the wikitext prefix, and that prevents the link from being parsed as a link, so wikitext is shown
[06:44:26] <Nemo_bis>	 ^_^