$ git clone -n https://gitee.com/zhangwenlong01/perl-Math-BigInt-FastCalc.git /var/lib/mock/dist-an23.4-build-505506-74842/root/chroot_tmpdir/scmroot/perl-Math-BigInt-FastCalc
Cloning into '/var/lib/mock/dist-an23.4-build-505506-74842/root/chroot_tmpdir/scmroot/perl-Math-BigInt-FastCalc'...
$ git fetch origin cabf0497cf67b1217a56ea5d233b72d328d38726:KOJI_FETCH_HEAD
From https://gitee.com/zhangwenlong01/perl-Math-BigInt-FastCalc
 * [new ref]         cabf0497cf67b1217a56ea5d233b72d328d38726 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cabf049 rebuild for loongarch64