Roster versioning issues
Bug description
On a regular basis, Gajim fails to load the roster from the server and shows it as empty. The issue is related to roster versioning. Removing the current roster version in ACE fixes the issue until it reappears after some Gajim restarts.
Steps to reproduce
No stable way of reproduction found.
Software versions
OS version: Debian GNU/Linux 8.0 (jessie/testing) amd64
GTK version: 2.24.25
PyGTK version: 2.24.0