$ git clone -n https://gitee.com/src-opencloudos-rpms/qt5.git /var/lib/mock/dist-oc9-build-71806-47591/root/chroot_tmpdir/scmroot/qt5
Cloning into '/var/lib/mock/dist-oc9-build-71806-47591/root/chroot_tmpdir/scmroot/qt5'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/qt5
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e872eed import qt5-5.15.11-1.tl4