This bug is cloned from upstream bug- Bug link

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Original description:

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

Unable to restore internal snapshot on libvirt-client 11.2.0-1 

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

libvirt-11.2.0-1.el10.x86_64
qemu-kvm-10.0.0-1.el10.x86_64

How reproducible is this bug?:

100%

Steps to reproduce

1. Have a running VM with a disk vdb already attached.
2. Create two internal snapshot snapshotA and snapshotB:

   # virsh snapshot-create-as --domain vm --name snapshotA --description "Description of snapshotA"
   Domain snapshot snapshotA created 
   
   # virsh snapshot-create-as --domain vm --name snapshotB --description "Description of snapshotB"
   Domain snapshot snapshotB created

1. Set the current snapshot to snapshotA:

   # virsh snapshot-current --domain vm --snapshotname snapshotA 
   Snapshot snapshotA set as current  

1. Attempt to revert to snapshotB:

   # virsh snapshot-revert --domain vm --snapshotname snapshotB 
   error: Failed to revert snapshot snapshotB 
   error: operation failed: load of internal snapshot 'snapshotB' job failed: Device 'libvirt-2-format' is writable but does not support snapshots  

Expected results:

The domain should successfully revert to snapshot snapshotB

Actual results:

error: Failed to revert snapshot snapshotB
error: operation failed: load of internal snapshot 'snapshotB' job failed: Device 'libvirt-2-format' is writable but does not support snapshots