Can't talk to a JID
Bug description
I see my friend, he send me message, but I can't answer to him.
Steps to reproduce
I don't exactly know. I just add my friend and receive message from him.
http://paste.debian.net/hidden/15595211/
Software versions
OS version: me : Debian GNU/Linux testing (jessie) ; my friend : Gentoo Base System release 2.2
GTK version: me : 2.24.18 ; my friend : 2.24.17
PyGTK version: me : 2.24.0 ; my friend : 2.24.0