[css-anchor-position-1] Forbid position-try-fallbacks: none, none, none due to ambiguous meaning w3c#12838

Author: fantasai

css-anchor-position-1/Overview.bs

@@ -1594,7 +1594,7 @@ Giving Fallback Options: the 'position-try-fallbacks' property {#position-try-fa
 
 <pre class=propdef>
 Name: position-try-fallbacks
-Value: none | [ [<<dashed-ident>> || <<try-tactic>>] | <<'position-area'>> ]#
+Value: none | [ [<<dashed-ident>> || <<try-tactic>>] | <<position-area>> ]#
 Initial: none
 Inherited: no
 Applies to: [=absolutely positioned boxes=]
@@ -1680,7 +1680,7 @@ Values have the following meanings:
 
 		Otherwise, does nothing.
 
-	: <dfn><<'position-area'>></dfn>
+	: <dfn><<position-area>></dfn>
 	::
 		Automatically creates a [=position option=]
 		composed solely of a 'position-area' property
@@ -2602,4 +2602,7 @@ Significant changes since the <a href="https://www.w3.org/TR/2025/WD-css-anchor-
 
 ISSUE: Audit <a href="https://github.com/w3c/csswg-drafts/commits/main/css-anchor-position-1">changes</a>!
 
+* Fix grammar of 'position-try-fallbacks' to exclude lists of ''position-area/none'' keywords.
+	(<a href="https://github.com/w3c/csswg-drafts/issues/12838">Issue 12838</a>)
+
 See also <a href="https://www.w3.org/TR/2025/WD-css-anchor-position-1-20250509/#changes">Previous Changes</a>.