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vectorcraft/docs
bflatasticandClaude Opus 5.5 74b5a904b7 M4.40: Preserve Editing SVGs reopen exactly, or as plain SVG once edited elsewhere
The editing data now sits in CDATA inside <metadata> with a hash of the
markup around that element (whitespace between tags and line endings
don't count). document.open restores the native document when the hash
matches (data written without a hash is trusted as before); when another
app changed the SVG, or the data can't be read, it imports the SVG and
says why in its warnings. vectorcraft_svg::editing reports the data and
whether it is intact; editing_data stays. Live effects, symbols and
patterns come back exactly; the import fuzz test now mutates saved SVGs
with editing data and hidden layers.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-05 09:03:52 +07:00
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