$ git clone -n https://gitee.com/src-anolis-os/perl-Math-BigInt-GMP.git /var/lib/mock/dist-an23-loongarch-build-310310-66339/root/chroot_tmpdir/scmroot/perl-Math-BigInt-GMP
Cloning into '/var/lib/mock/dist-an23-loongarch-build-310310-66339/root/chroot_tmpdir/scmroot/perl-Math-BigInt-GMP'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/perl-Math-BigInt-GMP
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4036c1b init from upstream