I was seeing some funky behavior in certain browsers as well though, e.g. in Firefox, using /login while already logged in with another account wouldn’t work properly. This is a different issue from the /logout not working properly though.
So as for the /logout not working in AIR, I’ll have one of my apps display the issue. I was on vacation so haven’t been able to do so yet. I’ll post it here when I have a build for testing this.