What were you trying to do that didn't work?

Creating a snapshot using 'virsh snapshot-create-as' with or without --disk-only due to name collision

What is the impact of this issue to you?

Cannot generate snapshots of important VMs

Please provide the package NVR for which the bug is seen:

How reproducible is this bug?:

100%

Steps to reproduce

1. Create test VM with two disks, both named according to the VM name
2. Attempt to generate a snapshot using 'virsh snapshot-create-as' for this VM

Expected results

Successful snapshot creation

Actual results

Failed snapshot creation, with the following error:
error: unsupported configuration: cannot generate external snapshot name for disk 'vdb': collision with disk 'vda'