Close 4000 as resolved by P3567R2, approved in Kona

Author: jwakely

xml/issue4000.xml

@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='utf-8' standalone='no'?>
 <!DOCTYPE issue SYSTEM "lwg-issue.dtd">
 
-<issue num="4000" status="New">
+<issue num="4000" status="Resolved">
 <title><tt>flat_map::insert_range</tt>'s <i>Effects</i> is not quite right</title>
 <section><sref ref="[flat.map.modifiers]"/></section>
 <submitter>Hewill Kang</submitter>
@@ -35,6 +35,7 @@ Set priority to 3 after reflector poll in October 2023.
 <note>2025-09-05; LWG telecon</note>
 <p>This will be resolved by <paper num="P3567"/>.</p>
 
+<note>2025-11-11; Resolved by <paper num="P3567R2"/>, approved in Kona. Status changed: New &rarr; Resolved.</note>
 </discussion>
 
 <resolution>