Template talk:Retcon warning

Can somebody with the neccesary skills fix this? The template adds to the pages, instead of adding a real category. --Hunter (talk) 11:16, 10 August 2017 (UTC)
 * Nixing the parameter (which wasn't really being used) fixed it. I suspect it's more of an issue with the 1.29 update than anything about that specifically, though. --Corveroth (talk) 15:46, 10 August 2017 (UTC)