$ git clone -n https://gitee.com/fundawang/libpq.git /var/lib/mock/dist-an23-build-286383-64830/root/chroot_tmpdir/scmroot/libpq
Cloning into '/var/lib/mock/dist-an23-build-286383-64830/root/chroot_tmpdir/scmroot/libpq'...
$ git fetch origin d9b7ec6f05b3f1dfc2dae83f6b2c6081383cf8e8:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/libpq
 * [new ref]         d9b7ec6f05b3f1dfc2dae83f6b2c6081383cf8e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d9b7ec6 15.3