$ git clone -n https://gitee.com/src-opencloudos-rpms/libpfm.git /var/lib/mock/dist-oc9-build-59726-16463/root/chroot_tmpdir/scmroot/libpfm
Cloning into '/var/lib/mock/dist-oc9-build-59726-16463/root/chroot_tmpdir/scmroot/libpfm'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libpfm
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff15f70 import libpfm-4.13.0-3.tl4