$ git clone -n https://gitee.com/opencloudos-stream/libunistring.git /var/lib/mock/dist-ocs23-base-build-253461-24615/root/chroot_tmpdir/scmroot/libunistring
Cloning into '/var/lib/mock/dist-ocs23-base-build-253461-24615/root/chroot_tmpdir/scmroot/libunistring'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libunistring
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ecaf8a Rebuilt for loongarch release