$ git clone -n https://gitee.com/opencloudos-stream/perl-Math-BigRat.git /home/lib/mock/dist-ocs23-loongarch64-build-186712-12833/root/chroot_tmpdir/scmroot/perl-Math-BigRat
Cloning into '/home/lib/mock/dist-ocs23-loongarch64-build-186712-12833/root/chroot_tmpdir/scmroot/perl-Math-BigRat'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/perl-Math-BigRat
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6303cfe Rebuilt for OpenCloudOS Stream 23.09