$ git clone -n https://gitee.com/opencloudos-stream/petsc.git /var/lib/mock/dist-rebuild-after-rpm-check-build-131293-9060/root/chroot_tmpdir/scmroot/petsc
Cloning into '/var/lib/mock/dist-rebuild-after-rpm-check-build-131293-9060/root/chroot_tmpdir/scmroot/petsc'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/petsc
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6853d81 !1 [I8UTBW]:Rebuild for SuperLU in opencloudos-stream Merge pull request !1 from ocs-bot/master