$ git clone -n https://gitee.com/fundawang/lorax.git /var/lib/mock/dist-an23-build-316404-67756/root/chroot_tmpdir/scmroot/lorax
Cloning into '/var/lib/mock/dist-an23-build-316404-67756/root/chroot_tmpdir/scmroot/lorax'...
$ git fetch origin d938b90f1cfb878c96f0b8086a5ba3398bd77c7e:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/lorax
 * [new ref]         d938b90f1cfb878c96f0b8086a5ba3398bd77c7e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d938b90 40.0