$ git clone -n https://gitee.com/wency_cn/prefixdevname.git /var/lib/mock/dist-an23-build-492851-74562/root/chroot_tmpdir/scmroot/prefixdevname
Cloning into '/var/lib/mock/dist-an23-build-492851-74562/root/chroot_tmpdir/scmroot/prefixdevname'...
$ git fetch origin 84c50f447f4b9dbb37ef636c6052dbfb57443d98:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/prefixdevname
 * [new ref]         84c50f447f4b9dbb37ef636c6052dbfb57443d98 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 84c50f4 Update code from upstream