$ git clone -n https://src.fedoraproject.org/rpms/postgresql-pgpool-II.git /var/lib/mock/f39-build-1558322-37303/root/chroot_tmpdir/scmroot/postgresql-pgpool-II
Cloning into '/var/lib/mock/f39-build-1558322-37303/root/chroot_tmpdir/scmroot/postgresql-pgpool-II'...
$ git fetch origin 917c403a36c6f0903153d75e95660223f7868323:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/postgresql-pgpool-II
 * [new ref]         917c403a36c6f0903153d75e95660223f7868323 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 917c403 Rebase to the latest upstream version (rhbz#2232454)