$ git clone -n https://src.fedoraproject.org/rpms/python-mirrors-countme.git /var/lib/mock/f42-build-3421931-45166/root/chroot_tmpdir/scmroot/python-mirrors-countme
Cloning into '/var/lib/mock/f42-build-3421931-45166/root/chroot_tmpdir/scmroot/python-mirrors-countme'...
$ git fetch origin 6cd162736b0830b16ac1fcfc1e15a1095ebc1a5c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mirrors-countme
 * [new ref]         6cd162736b0830b16ac1fcfc1e15a1095ebc1a5c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6cd1627 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild