$ git clone -n https://src.fedoraproject.org/rpms/postgresql16.git /var/lib/mock/f42-build-side-1-3511165-46047/root/chroot_tmpdir/scmroot/postgresql16
Cloning into '/var/lib/mock/f42-build-side-1-3511165-46047/root/chroot_tmpdir/scmroot/postgresql16'...
$ git fetch origin 5c2f5fe0d8711a9f55b53b022825f560b1443c98:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/postgresql16
 * [new ref]         5c2f5fe0d8711a9f55b53b022825f560b1443c98 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c2f5fe Update to 16.8 upstream release