$ git clone -n https://src.fedoraproject.org/rpms/kf6-kimageformats.git /var/lib/mock/f40-build-2399322-60549/root/chroot_tmpdir/scmroot/kf6-kimageformats
Cloning into '/var/lib/mock/f40-build-2399322-60549/root/chroot_tmpdir/scmroot/kf6-kimageformats'...
$ git fetch origin 9664ed3b3677b00599c26e4eed9b061d1615f30f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kimageformats
 * [new ref]         9664ed3b3677b00599c26e4eed9b061d1615f30f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9664ed3 5.249.0