Just started happening today. Something in the new build that could've caused this? I see an old thread at http://lists.x2go.org/pipermail/x2go-user/2013-July/001515.html not sure if it's really the same issue though.
All RPM packages have been broken for the past few days due to the switch to Arctica's version of nx-libs in the heuler repository.
I have been able to fix the issue a few hours ago.
Make sure to:
- dnf clean metadata
- dnf makecache
- dnf up --best --allowerasing
Indeed dnf clean all and dnf update seems to have fixed it.