networks: clear the 'remote command used' state and break if overriding account/reply target fails

plugins/networks.py

@@ -100,10 +100,14 @@ def remote(irc, source, args):
 
     # Force remoteirc.called_in to something private in order to prevent
     # accidental information leakage from replies.
+    try:
         remoteirc.called_in = remoteirc.called_by = remoteirc.pseudoclient.uid
 
         # Set the identification override to the caller's account.
         remoteirc.pseudoclient.account = irc.users[source].account
+    except:
+        REMOTE_IN_USE.clear()
+        raise
 
     def _remote_reply(placeholder_self, text, **kwargs):
         """