$ git clone -n https://gitee.com/opencloudos-stream/libxc.git /var/lib/mock/dist-oc9-epol-build-186336-80287/root/chroot_tmpdir/scmroot/libxc
Cloning into '/var/lib/mock/dist-oc9-epol-build-186336-80287/root/chroot_tmpdir/scmroot/libxc'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libxc
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 09ab175 !2 set mcmodel=medium on loongarch64 Merge pull request !2 from streamlet_hy/master