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

On rhel10.0/9.6 the man page for virt-clone --reflink is
--reflink
Perform a lightweight copy. This is much faster if source images and destination images are all on the same btrfs filesystem. This only works for raw format disk images, any non-raw images will not attempt to use refink

This is wrong, virt-clone now can --reflink qcow files

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

How reproducible is this bug?:

100%

Expected results

we can use the description from upstream:
--reflink
Perform a lightweight copy. This is much faster if source images and destination images are all on the same btrfs filesystem. This only works for raw format disk images, any non-raw images will not attempt to use refink

Actual results