$ git clone -n https://gitee.com/newstart-gdlc/stacer.git /var/lib/mock/dist-an8.9-nde-build-411004-72771/root/chroot_tmpdir/scmroot/stacer
Cloning into '/var/lib/mock/dist-an8.9-nde-build-411004-72771/root/chroot_tmpdir/scmroot/stacer'...
$ git fetch origin a51b7a59ff5c7f46bbb0fc4b57c0dfe42191bde1:KOJI_FETCH_HEAD
From https://gitee.com/newstart-gdlc/stacer
 * [new ref]         a51b7a59ff5c7f46bbb0fc4b57c0dfe42191bde1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a51b7a5 add stacer