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

As subject

Please provide the package NVR for which bug is seen:

kernel-5.14.0-413.el9.x86_64

libvirt-10.0.0-2.el9.x86_64
qemu-kvm-8.2.0-3.el9.x86_64

How reproducible:

100%

Steps to reproduce

1. Prepare a running VM

1. virsh domblklist rhel
    Target   Source
   ----------------------------------------------
    vda      /var/lib/libvirt/images/rhel.qcow2

1. virsh list --all
   Id Name State
   --------------------------------
   30 rhel running 

2. Create snapshot with 2 branches:

1. snap=s1;virsh snapshot-create-as rhel $snap --memspec /var/lib/libvirt/images/rhel_$snap
   Domain snapshot s1 created

1. snap=s2;virsh snapshot-create-as rhel $snap --memspec /var/lib/libvirt/images/rhel_$snap
   Domain snapshot s2 created

1. snap=s3;virsh snapshot-create-as rhel $snap --memspec /var/lib/libvirt/images/rhel_$snap
   Domain snapshot s3 created

1. virsh snapshot-revert rhel s1
   Domain snapshot s1 reverted

1. snap=s4;virsh snapshot-create-as rhel $snap --memspec /var/lib/libvirt/images/rhel_$snap
   Domain snapshot s4 created

1. snap=s5;virsh snapshot-create-as rhel $snap --memspec /var/lib/libvirt/images/rhel_$snap
   Domain snapshot s5 created

1. virsh snapshot-list rhel --tree
   s1
    
   +- s2

   +- s3

+- s4
 
+- s5

1. virsh snapshot-current rhel --name
   s5

3. Delete the parent snapshot s2

1. virsh snapshot-delete rhel s2
   error: Failed to delete snapshot s2
   error: invalid argument: could not find base disk source in disk source chain

Expected results

Delete s2 without error

Actual results

as above

Logs and XML:

snapshot.tar.xz