Thread:Extension talk:MsUpload/Cannot use templates in summary message

On line 139 of MsUpload.js it uses  instead of

The wikitext does not need to be parsed at all since this is meant to be wikitext for the file summary, not parsed text. Since mw.message doesn't work with templates, this prevents templates from being used in the summary, and either way this is should be outputting wikitext not parsed text.