Put the monkey patch in the wrong place.

src/callbacks.py

@@ -1041,12 +1041,12 @@ class Commands(object):
         self.log.info('%s called by %q.', formatCommand(command), msg.prefix)
         # XXX I'm being extra-special-careful here, but we need to refactor
         #     this.
+        try:
             for name in command:
                 cap = checkCommandCapability(msg, self, name)
                 if cap:
                     irc.errorNoCapability(cap)
                     return
-        try:
             try:
                 self.callingCommand = command
                 self.callCommand(command, irc, msg, *args, **kwargs)