$ git clone -n https://src.fedoraproject.org/rpms/volume_key.git /var/lib/mock/f40-build-2332299-59151/root/chroot_tmpdir/scmroot/volume_key
Cloning into '/var/lib/mock/f40-build-2332299-59151/root/chroot_tmpdir/scmroot/volume_key'...
$ git fetch origin 3c2df9d55f86b8c18228bd0505d296be91b62841:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/volume_key
 * [new ref]         3c2df9d55f86b8c18228bd0505d296be91b62841 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c2df9d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild