Latest discourse-akismet breaks Discourse stable (1.3.x)

I’m sure that when I comment out discourse-akismet and rebuild then my forum comes back.

My forum is on the stable channel (which right now means Discourse v. 1.3.5). I wonder if the HEAD version of discourse-akismet works with 1.5.x (whatever meta is running?) but not with 1.3.x.

Would be nice if there was a way to specify a particular revision of a plugin. I’m trying to find or figure out a way to do that via a github URL, but so far no luck. Maybe I’ll fork the repo, revert the last commit on my fork and use that URL instead of the official one…