$ git clone -n https://gitee.com/wency_cn/iw_1770737640.git /var/lib/mock/dist-an23-build-513187-75099/root/chroot_tmpdir/scmroot/iw_1770737640
Cloning into '/var/lib/mock/dist-an23-build-513187-75099/root/chroot_tmpdir/scmroot/iw_1770737640'...
$ git fetch origin 6867e5d4d58b9704cd8c3f87a0759136a5e74176:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/iw_1770737640
 * [new ref]         6867e5d4d58b9704cd8c3f87a0759136a5e74176 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6867e5d Update code from upstream