$ git clone -n https://src.fedoraproject.org/rpms/jq.git /var/lib/mock/f40-build-2219220-52636/root/chroot_tmpdir/scmroot/jq
Cloning into '/var/lib/mock/f40-build-2219220-52636/root/chroot_tmpdir/scmroot/jq'...
$ git fetch origin 3170fecd8471d2f7c267f346e677280015a077a8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jq
 * [new ref]         3170fecd8471d2f7c267f346e677280015a077a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3170fec update to 1.7.1 rhbz#2252340