It seems that the "crash-after-resume" bug is actually due to the socket disappearing in KviIrcConnection::linkEstabilished(). This is a workaround, the really fix is to understand why the socket's writenotifier gets a called at all

git-svn-id: https://svn.kvirc.de/svn/trunk/kvirc@6349 17fca916-40b9-46aa-a4ea-0a15b648b75c