Run after rugnux has written its MTZ, so processing never sees the model. Fetches the
entry (cached), matches the data to the model's setting by trying every Niggli-cell
change of basis and keeping the one that best fits the model's Fcalc on a mid-resolution
shell, re-expresses the data in the deposited space group and cell, and has REFMAC compute
R-work/R-free of the unmodified model (rigid-body mode read at its first cycle: no
dictionaries, no ligand stripped, no refinement). Baseline: the same protocol on the
depositor's own structure factors and free set, plus rugnux's data on the depositor's flags.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
