$ git clone -n https://src.fedoraproject.org/rpms/perl-Math-Random-MT.git /var/lib/mock/f40-build-792062-138073/root/chroot_tmpdir/scmroot/perl-Math-Random-MT
Cloning into '/var/lib/mock/f40-build-792062-138073/root/chroot_tmpdir/scmroot/perl-Math-Random-MT'...
$ git fetch origin bc2e1b7a5f4b10a16ec4e30ba75f613d72940b93:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Math-Random-MT
 * [new ref]         bc2e1b7a5f4b10a16ec4e30ba75f613d72940b93 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc2e1b7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild