[fonttools/fonttools] 2a93de: Split contextual rulesets when all formats overflow

[Cosimo Lupo]

Branch: refs/heads/fix-contextual-size-overflow
Home: https://github.com/fonttools/fonttools
Commit: 2a93de2209317546d4016ea09b229e0417f59eb8
https://github.com/fonttools/fonttools/commit/2a93de2209317546d4016ea09b229e0417f59eb8
Author: Cosimo Lupo <cos...@anthrotype.com>
Date: 2026-09-07 (Mon, 07 Sep 2026)

Changed paths:
M Lib/fontTools/otlLib/builder.py
A Tests/otlLib/contextual_overflow_test.py

Log Message:
-----------
Split contextual rulesets when all formats overflow

Retry consecutive halves until a candidate fits, preserving rule order within the lookup. Keep the existing error for an unsplittable single rule.



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