I'm seeing mentions arrive at the wrong blog #532
Description
I have a multiblog using subdomains (isbrill.com). It has two mentions that seem malformed or something. Both are listed as protocol Webmention, which is odd because they are both ActivityPub (the like is already there and the reply is MIA). They end with ?replytocom=nn where nn is some number. The multisite blogs they seem to be replying to are given as the source URL, the IP is my blog, and they resemble ActivityPub comments/likes. The mentions both hit the default mention target.
As far as I can tell, WordPress uses ?replytocom for users who try to reply but don't have JavaScript enabled.