$ git clone -n https://src.fedoraproject.org/rpms/gh.git /var/lib/mock/f39-build-1570771-37775/root/chroot_tmpdir/scmroot/gh
Cloning into '/var/lib/mock/f39-build-1570771-37775/root/chroot_tmpdir/scmroot/gh'...
$ git fetch origin b28bb8d0cc7b49b11c6410a42cb6a7f2c2030dac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gh
 * [new ref]         b28bb8d0cc7b49b11c6410a42cb6a7f2c2030dac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b28bb8d Update to 2.38.0 - Closes rhbz#2247708