$ git clone -n https://gitee.com/opencloudos-stream/openmpi.git /var/lib/mock/dist-ocs23-riscv-rva23-build-359206-42001/root/chroot_tmpdir/scmroot/openmpi
Cloning into '/var/lib/mock/dist-ocs23-riscv-rva23-build-359206-42001/root/chroot_tmpdir/scmroot/openmpi'...
$ git fetch origin rva23:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/openmpi
 * [new branch]      rva23      -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de0b126 Use java-1.8.0-openjdk-devel on riscv64