Verified on vt15.
1.clone VM from a live snapshot with ram enabled and virtio flag 'True'
2.clone VM from a live snapshot with ram enabled and virtio flag 'False'
3.clone VM from a regular snapshot and virtio flag 'True'
4.clone VM from a regular snapshot and virtio flag 'False'
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.