$ git clone -n https://gitee.com/zhangwenlong01/perl-Math-BigInt-GMP.git /var/lib/mock/dist-an23.4-build-505511-74842/root/chroot_tmpdir/scmroot/perl-Math-BigInt-GMP
Cloning into '/var/lib/mock/dist-an23.4-build-505511-74842/root/chroot_tmpdir/scmroot/perl-Math-BigInt-GMP'...
$ git fetch origin d416b14f9809030bdfcae6dbfeea820ddb7f6897:KOJI_FETCH_HEAD
From https://gitee.com/zhangwenlong01/perl-Math-BigInt-GMP
 * [new ref]         d416b14f9809030bdfcae6dbfeea820ddb7f6897 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d416b14 rebuild for loongarch64