[css-anchor-position-1] Replace issue with informative note, now that the issue has been resolved.

Author: tabatkins

css-anchor-position-1/Overview.bs

@@ -858,15 +858,6 @@ specify a <dfn>position fallback list</dfn>,
 where each entry consists of the properties specified by each ''@try'',
 in order.
 
-Issue: If you have a bunch of elements
-that all use the same positioning and fallback,
-just relative to different anchor elements
-(like a bunch of tooltips),
-there's no way to have them share @position-fallback rules;
-they each need a unique set.
-This sucks!
-Should figure out some way to address this.
-
 Issue: Would be useful to be able to detect
 when your anchor(s) are fully off-screen
 and suppress your display entirely.
@@ -876,6 +867,21 @@ don't want to just hover over arbitrary parts of the page
 because their anchor happens to have that position
 relative to the scrollport.
 
+Note: If multiple elements using different anchors
+want to use the same fallback positioning,
+just relative to their own anchor elements,
+omit the <<anchor-element>> in ''anchor()''
+and specify each element's anchor in 'anchor-default' instead.
+
+Note: The most common types of fallback positioning
+(putting the positioned element on one side of the anchor normally,
+but flipping to the opposite side if needed)
+can be done automatically,
+without using ''@position-fallback'' at all,
+by using ''anchor()/auto'' or ''anchor()/auto-side''
+side values in the ''anchor()'' function.
+
+
 Applying Position Fallback {#fallback-apply}
 --------------------------