$ git clone -n https://gitee.com/src-opencloudos-rpms/postgresql-jdbc.git /var/lib/mock/dist-oc8-build-241704-82876/root/chroot_tmpdir/scmroot/postgresql-jdbc
Cloning into '/var/lib/mock/dist-oc8-build-241704-82876/root/chroot_tmpdir/scmroot/postgresql-jdbc'...
$ git fetch origin 8387be7fd479bb626dac2b4f19c5814787574658:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/postgresql-jdbc
 * [new ref]         8387be7fd479bb626dac2b4f19c5814787574658 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8387be7 import postgresql-jdbc-42.2.14-4.tl3