$ git clone -n https://gitee.com/src-opencloudos-rpms/postgresql-jdbc.git /var/lib/mock/dist-oc8-build-69360-47200/root/chroot_tmpdir/scmroot/postgresql-jdbc
Cloning into '/var/lib/mock/dist-oc8-build-69360-47200/root/chroot_tmpdir/scmroot/postgresql-jdbc'...
$ git fetch origin 72076fd434d0863f2975490069c7ce77fa5fd433:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/postgresql-jdbc
 * [new ref]         72076fd434d0863f2975490069c7ce77fa5fd433 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 72076fd import postgresql-jdbc-42.2.14-3.tl3