$ git clone -n https://src.fedoraproject.org/rpms/perl-Data-Binary.git /var/lib/mock/f40-build-2622378-64866/root/chroot_tmpdir/scmroot/perl-Data-Binary
Cloning into '/var/lib/mock/f40-build-2622378-64866/root/chroot_tmpdir/scmroot/perl-Data-Binary'...
$ git fetch origin 3bd6e971c38a5401bcb708347ea3cabbf77ca2ab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Data-Binary
 * [new ref]         3bd6e971c38a5401bcb708347ea3cabbf77ca2ab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3bd6e97 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild