$ git clone -n https://src.fedoraproject.org/rpms/xq.git /var/lib/mock/f38-build-720866-97936/root/chroot_tmpdir/scmroot/xq
Cloning into '/var/lib/mock/f38-build-720866-97936/root/chroot_tmpdir/scmroot/xq'...
$ git fetch origin 1044f14f74c925429ec999fcac59380ed5be6e64:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xq
 * [new ref]         1044f14f74c925429ec999fcac59380ed5be6e64 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1044f14 Update to 1.1.4