$ git clone -n https://gitee.com/fundawang/git.git /var/lib/mock/dist-an23-build-183186-60217/root/chroot_tmpdir/scmroot/git
Cloning into '/var/lib/mock/dist-an23-build-183186-60217/root/chroot_tmpdir/scmroot/git'...
$ git fetch origin e008780f6be411d9f17eb18933096d85c3b16d02:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/git
 * [new ref]         e008780f6be411d9f17eb18933096d85c3b16d02 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e008780 add br