$ git clone -n https://gitee.com/src-opencloudos-rpms/libpq.git /var/lib/mock/dist-oc8-build-73355-48827/root/chroot_tmpdir/scmroot/libpq
Cloning into '/var/lib/mock/dist-oc8-build-73355-48827/root/chroot_tmpdir/scmroot/libpq'...
$ git fetch origin b418338ccbda0b847122e2ac05f44bd99df7be23:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libpq
 * [new ref]         b418338ccbda0b847122e2ac05f44bd99df7be23 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b418338 import libpq-13.11-1.tl3