$ git clone -n https://gitee.com/wanghuan158/qemu.git /var/lib/mock/dist-an23-build-506868-74878/root/chroot_tmpdir/scmroot/qemu
Cloning into '/var/lib/mock/dist-an23-build-506868-74878/root/chroot_tmpdir/scmroot/qemu'...
$ git fetch origin cd2685bda4e991b7d75641cea001691b15180769:KOJI_FETCH_HEAD
From https://gitee.com/wanghuan158/qemu
 * [new ref]         cd2685bda4e991b7d75641cea001691b15180769 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cd2685b Support fine-grained shared memory management for CSV3 VM