alonso.torres 1e9d19b214 🐛 Compose child flip flags through parent placement
Keep the source and parent-frame flip composition when placing component
content through a rotated parent. A fresh large matrix turn can otherwise
set both child flip flags even though the user only rotated (F170).
Preserve nil/false representation when the parent does not flip an axis.

The portable regression fails two flag assertions before the fix. Eight
geometry tests pass 61 assertions, the original library shrink passes, and
the pure golden master matches all 1149 assertions without recording.
Common and frontend lint and format pass.

Benchmark ratios against Phase 1e: main 10/100/1000 copies 0.58/0.74/0.57,
three levels 0.49, chain 0.49, library 0.52, many shapes 0.47, variant
switch 0.61. No regression flags.

AI-assisted-by: GPT-6
2026-10-28 15:53:09 +01:00
..
2026-10-28 15:53:06 +01:00
2026-09-29 09:07:34 +02:00
2026-03-11 15:24:40 +01:00