$ git clone -n https://src.fedoraproject.org/rpms/ktnef.git /var/lib/mock/f42-build-864143-172187/root/chroot_tmpdir/scmroot/ktnef
Cloning into '/var/lib/mock/f42-build-864143-172187/root/chroot_tmpdir/scmroot/ktnef'...
$ git fetch origin 81b82846b8a07d2664471ed4296e2c7c7888516b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ktnef
 * [new ref]         81b82846b8a07d2664471ed4296e2c7c7888516b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 81b8284 24.12.0