[css-text-4] plain-text copy&paste and text-autospace

See #8511

Author: frivoal

css-text-4/Overview.bs

@@ -10492,6 +10492,8 @@ Automatic Contextual Spacing: the 'text-autospace' property</h3>
 	using a set of character-class-based rules,
 	allowing for automatic control over inter-script spacing
 	and for spacing around punctuation.
+	This property has no effect on the underlying content,
+	and must not affect the content of a plain text copy &amp; paste operation.
 
 	<wpt>
 		text-autospace/text-autospace-vertical-combine-001.html
@@ -13296,6 +13298,8 @@ Changes</h2>
 
 	Significant changes since the <a href="https://www.w3.org/TR/2026/WD-css-text-4-20260608/">8 June 2026 Working Draft</a> include:
 	* None yet
+	* Clarify that 'text-autospace' has no effect on plain-text copy &amp; paste.
+		(<a href="https://github.com/w3c/csswg-drafts/issues/8511">Issue 8511</a>)
 
 	Significant changes since the <a href="https://www.w3.org/TR/2024/WD-css-text-4-2024052">29 May 2024 Working Draft</a> include:
 	* Added ''avoid-orphans'' to 'text-wrap-style'.