For the reproducers, something worth trying is to use to try is external snapshots (instead of internal which the snapshot-create-as does without flags).
instead run: snapshot-create-as --disk-only
which will basically do qemu-img create -b your_original_qcow2 -f qcow2 pristine
For the reproducers, something worth trying is to use to try is external snapshots (instead of internal which the snapshot-create-as does without flags).
instead run: snapshot-create-as --disk-only
which will basically do qemu-img create -b your_original_qcow2 -f qcow2 pristine
And store the snapshot delta in a separate file.