$ git clone -n https://gitee.com/opencloudos-stream/kdegraphics-thumbnailers.git /var/lib/mock/dist-ocs23-epol9-build-167049-10311/root/chroot_tmpdir/scmroot/kdegraphics-thumbnailers
Cloning into '/var/lib/mock/dist-ocs23-epol9-build-167049-10311/root/chroot_tmpdir/scmroot/kdegraphics-thumbnailers'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/kdegraphics-thumbnailers
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b7aee3 update