* M7: preserve Arabic text order when copying and editing
Record per-line ActualText for shaped added text and preserve its logical order in Edit text. Cover mixed scripts, marks, copy/search, retyping and save/reopen; retain the drawing golden.
Assisted-by: Codex
* Edit text: keep only right-to-left ActualText out of line joining and bidi recovery
Word and Chrome wrap Latin ligatures in /ActualText spans mid-word; splitting
lines at every span broke such words into pieces in Edit Text. Only spans
whose ActualText has strong right-to-left characters keep their own line and
typing order now. Regression: a Latin fi ligature span stays on its line.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
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