spice-vdagent 0.20.0 Shutdown Problem

The spice-vdagentd 0.20.0 server fails to shut down normally at system shutdown. This occurs on both my Linux QEMU-KVM guests that upgraded from 0.19.0 to 0.20.0 yesterday. One runs Arch Linux, the other runs openSUSE Tumbleweed.

During shutdown there is a 90 second delay (the systemd default) before systemd times out the spice-vdagent.service unit and kills the daemon with a SIGKILL. I've attached a excerpt from the system journal for Tumbleweed. spice-vdagent-journal.txt