$ git clone -n https://gitee.com/wency_cn/git.git /var/lib/mock/dist-an23-build-508182-74965/root/chroot_tmpdir/scmroot/git
Cloning into '/var/lib/mock/dist-an23-build-508182-74965/root/chroot_tmpdir/scmroot/git'...
$ git fetch origin 76786801ecf8a97c6cb1496cb91247dff7ab1231:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/git
 * [new ref]         76786801ecf8a97c6cb1496cb91247dff7ab1231 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7678680 Update code from upstream