$ git clone -n https://gitee.com/src-opencloudos-rpms/brltty.git /var/lib/mock/dist-oc9-build-123040-72684/root/chroot_tmpdir/scmroot/brltty
Cloning into '/var/lib/mock/dist-oc9-build-123040-72684/root/chroot_tmpdir/scmroot/brltty'...
$ git fetch origin 88ad3beaf2a942fc32b36e6a9631e3f728796fb7:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/brltty
 * [new ref]         88ad3beaf2a942fc32b36e6a9631e3f728796fb7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 88ad3be import brltty-6.6-9.tl4