$ git clone -n https://gitee.com/wenyuzifang/prefixdevname.git /var/lib/mock/dist-an23-build-469540-74027/root/chroot_tmpdir/scmroot/prefixdevname
Cloning into '/var/lib/mock/dist-an23-build-469540-74027/root/chroot_tmpdir/scmroot/prefixdevname'...
$ git fetch origin 8925c28bff03e05299942a91a0e88987fcd3d096:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/prefixdevname
 * [new ref]         8925c28bff03e05299942a91a0e88987fcd3d096 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8925c28 Update code from upstream