$ git clone -n https://gitee.com/opencloudos-stream/filesystem.git /var/lib/mock/dist-ocs23-loongarch64-build-134311-9587/root/chroot_tmpdir/scmroot/filesystem
Cloning into '/var/lib/mock/dist-ocs23-loongarch64-build-134311-9587/root/chroot_tmpdir/scmroot/filesystem'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/filesystem
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c05789 !1 Add loongarch64 to list of 64 bit architectures. Merge pull request !1 from zhangwenlong01/master