$ git clone -n https://gitee.com/opencloudos-stream/libidn2.git /var/lib/mock/dist-ocs23-base-build-252886-24615/root/chroot_tmpdir/scmroot/libidn2
Cloning into '/var/lib/mock/dist-ocs23-base-build-252886-24615/root/chroot_tmpdir/scmroot/libidn2'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libidn2
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0633ef7 Rebuilt for loongarch release