Actually, I saw it happen in Core 99. Not critical, but during an upgrade, the ssh connection kicks you out.
That happened to me a few weeks ago when I was upgrading a virtual router, and since it happened while the updates were still going on, I was pretty lost on how to fix it. I tried restarting the update process, and it appeared to work, but borked on reboot. Ended up copying the config out, then just doing a clean install.
Any reason why it is kicking you out of an ssh session? I can see in the pakfire logs that ssh is being replaced, but I thought that restarting ssh somehow magically did not kill the session.
Anyway, this is something I have not seen in the past (though I do normally use the WebUI). Let me know if this is a bug and, if so, anything I can do to troubleshoot.
Rod