$ git clone -n https://gitee.com/kanghou-silver/userspace-rcu.git /var/lib/mock/dist-an8.8-build-299071-65888/root/chroot_tmpdir/scmroot/userspace-rcu
Cloning into '/var/lib/mock/dist-an8.8-build-299071-65888/root/chroot_tmpdir/scmroot/userspace-rcu'...
$ git fetch origin b9d7f44af2b0f6c2efb7b50ca1082acf2fd17d6a:KOJI_FETCH_HEAD
From https://gitee.com/kanghou-silver/userspace-rcu
 * [new ref]         b9d7f44af2b0f6c2efb7b50ca1082acf2fd17d6a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9d7f44 add sw