$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc9-build-81860-56163/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc9-build-81860-56163/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 58090abe6d98aa6dc4840cd15670234abd33dc0f:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         58090abe6d98aa6dc4840cd15670234abd33dc0f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 58090ab Add auto-patch changlog