Reported on [[WP:VPT]]. Marking as critical.
When local file links are prefixed with a project code, ie. [[w:File:Example.jpg]] or [[en:File:Example.jpg]], the image will be transcluded instead of producing a link. This is a regression.
Example: [[Wikipedia:Help desk/Archives/2008 June 29#Resizing images already used on Wikipedia]]
This is quite serious as links to images on potentially many, many talk archives are now transcluded, which violates our copyright policies.