$ git clone -n https://gitee.com/fundawang/postgresql_1.git /var/lib/mock/dist-an23-build-300154-65927/root/chroot_tmpdir/scmroot/postgresql_1
Cloning into '/var/lib/mock/dist-an23-build-300154-65927/root/chroot_tmpdir/scmroot/postgresql_1'...
$ git fetch origin 91bf18754e0ef834ad5571c605aa9b6019b1d5eb:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/postgresql_1
 * [new ref]         91bf18754e0ef834ad5571c605aa9b6019b1d5eb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91bf187 15.4