$ git clone -n https://gitee.com/wenyuzifang/git.git /var/lib/mock/dist-an23-build-469428-74027/root/chroot_tmpdir/scmroot/git
Cloning into '/var/lib/mock/dist-an23-build-469428-74027/root/chroot_tmpdir/scmroot/git'...
$ git fetch origin 2863c30beb96be9d4cfdfbe800a980f2cd932443:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/git
 * [new ref]         2863c30beb96be9d4cfdfbe800a980f2cd932443 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2863c30 Update code from upstream