$ git clone -n https://gitee.com/src-opencloudos-rpms/qt5-qttools /var/lib/mock/dist-oc9-build-67403-38010/root/chroot_tmpdir/scmroot/qt5-qttools
Cloning into '/var/lib/mock/dist-oc9-build-67403-38010/root/chroot_tmpdir/scmroot/qt5-qttools'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/qt5-qttools
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e03deb Rebuild