- log_transform / _validate_unit_pre_dir now raise on non-finite input
instead of letting a NaN row silently poison the persisted normalizer
cache (norm < 1e-6 was always False for NaN, so the existing guard
never caught it).
- encode_secondaries warns when a row's secondary energies cumulatively
exceed e_sec, instead of silently saturating the overflowing slot's
stick-breaking logit via the _EPS floor.
- EVENT_ID_FILE_STRIDE overflow now raises instead of silently colliding
two files' event ids together (reintroducing train/val leakage).
- make_event_split(val_fraction=0.0) now actually holds out nothing,
instead of always forcing at least 1 validation event.
- setup_cache.save() is now serialized with a flock, since two
concurrent writers (a real scenario on this repo's shared
portal/condor machines) could otherwise race and silently drop one
writer's freshly-computed cache section.
- Documented (no behavior change) the pre_dir ≈ -ẑ antipodal rotation
singularity in _rodrigues_axis, which is real but inherent to any
single-valued local-frame convention.
Each fix has a regression test.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
lars
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