$ git clone -n https://src.fedoraproject.org/rpms/perl-PerlIO-buffersize.git /var/lib/mock/f40-build-2307500-57233/root/chroot_tmpdir/scmroot/perl-PerlIO-buffersize
Cloning into '/var/lib/mock/f40-build-2307500-57233/root/chroot_tmpdir/scmroot/perl-PerlIO-buffersize'...
$ git fetch origin 8fa4292242e1eccf90d283525f4b54d60cc6a5e8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-PerlIO-buffersize
 * [new ref]         8fa4292242e1eccf90d283525f4b54d60cc6a5e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8fa4292 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild