$ git clone -n https://gitee.com/src-opencloudos-rpms/rdma-core.git /var/lib/mock/dist-oc8-build-241041-82792/root/chroot_tmpdir/scmroot/rdma-core
Cloning into '/var/lib/mock/dist-oc8-build-241041-82792/root/chroot_tmpdir/scmroot/rdma-core'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rdma-core
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b8f4a0c !2 SXE2  modify patch file