$ git clone -n https://gitee.com/zhangwenlong01/libidn2.git /var/lib/mock/dist-an23-build-515958-75165/root/chroot_tmpdir/scmroot/libidn2
Cloning into '/var/lib/mock/dist-an23-build-515958-75165/root/chroot_tmpdir/scmroot/libidn2'...
$ git fetch origin a9d3de46e1243fb5053b40d3235cc224f2cc71d9:KOJI_FETCH_HEAD
From https://gitee.com/zhangwenlong01/libidn2
 * [new ref]         a9d3de46e1243fb5053b40d3235cc224f2cc71d9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9d3de4 rebuild for loongarch64