Usernames with dots break the URLs

[mereghost]

I've gotten this exception thrown when trying to use it.

ActionController::RoutingError (No route matches [PUT] "/projects/project-name/memberships/member-name.json"): app/middleware/ping.rb:29:in `call'

EDIT: Hmm... after some investigation it seems to happen only on usernames containing a dot (ex: marcello.rocha)