Update FieldIdGenerator to support HTML5 instead of HTML 4.01#65058

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ilonatommy merged 7 commits intomainfrom

copilot/update-fieldidgenerator-for-html5

Jan 20, 2026

Commits on Jan 15, 2026

Use SearchValues with complete Unicode whitespace blacklist

Copilot
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ilonatommy
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Fix consistency between fast and slow path validation

Copilot
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ilonatommy
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