$ git clone -n https://src.fedoraproject.org/rpms/libpq.git /var/lib/mock/f40-build-780076-130664/root/chroot_tmpdir/scmroot/libpq
Cloning into '/var/lib/mock/f40-build-780076-130664/root/chroot_tmpdir/scmroot/libpq'...
$ git fetch origin 7831b20fe31ba1f1e951e3baa2d354c58498b293:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libpq
 * [new ref]         7831b20fe31ba1f1e951e3baa2d354c58498b293 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7831b20 Backport OpenSSL 3.2 fix from upstream master