$ git clone -n https://gitee.com/opencloudos-stream/mesa.git /var/lib/mock/dist-ocs23-base-build-310326-32461/root/chroot_tmpdir/scmroot/mesa
Cloning into '/var/lib/mock/dist-ocs23-base-build-310326-32461/root/chroot_tmpdir/scmroot/mesa'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/mesa
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f4af7c !9 add r600 drivers for riscv64 Merge pull request !9 from Xinlong-Chen/master