Reverting to a snapshot while VM is running is allowed, but fails
Submitted by GN
With a running VM, the UI allows "Revert to this state" for snapshots, but this fails while the VM is running.
After shutting the VM down, snapshot reversion instead succeeds.
If snapshot reversion isn't supported with a running VM, the UI should either informatively disallow it, or automatically shut down the VM first (confirming shouldn't be necessary since reversion a state loss anyway) then revert the VM.
Tested with a freshly installed Fedora 26 Workstation VM and the "Just installed" snapshot.