alonso.torres e2740f3be7 🐛 Preserve scaled content styles through component sync ...

Store cumulative content scale as an optional shape attribute, default 1.
Sync scales the main's styles by the copy/main ratio separately from
constraint resizing. Keep descendants untouched and allow later main style
edits to propagate (F109). Both renderer modifier paths use this field.

Cover a later sync, repeated scaling, main radius edits, reset and its undo.
The original stroke regression failed before the fix. Common JVM/JS and
frontend suites, backend and exporter tests, lint and format checks pass.
Historical scale gestures cannot be reconstructed from old file data.

Benchmark vs Phase 1e (lower quantile, ms):
world                 baseline     now   ratio
main-10                  1.790   0.993    0.55
main-100                15.415   9.038    0.59
main-1000              153.086  90.145    0.59
three-levels            35.215  18.989    0.54
chain                   68.931  35.045    0.51
library-500             83.083  85.830    1.03
many-shapes              4.837   3.344    0.69
variant-100             32.052  33.586    1.05
All worlds pass the 10% regression threshold.

AI-assisted-by: GPT-6

2026-10-28 15:53:07 +01:00

..

cases

🐛 Fix touched groups when detaching with nested copies

2024-07-30 14:28:37 +02:00

common_tests

🐛 Preserve scaled content styles through component sync

2026-10-28 15:53:07 +01:00