$ git clone -n https://src.fedoraproject.org/rpms/beefy-miracle-backgrounds.git /var/lib/mock/f40-build-2335655-59391/root/chroot_tmpdir/scmroot/beefy-miracle-backgrounds
Cloning into '/var/lib/mock/f40-build-2335655-59391/root/chroot_tmpdir/scmroot/beefy-miracle-backgrounds'...
$ git fetch origin c72cb3ab8210d9e55f6e15bd61b697d038456210:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/beefy-miracle-backgrounds
 * [new ref]         c72cb3ab8210d9e55f6e15bd61b697d038456210 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c72cb3a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild