Subject: [PATCH] Prevent browser cache inconsistencies in relation to React custom 
builds vs React UMD builds when upgrading from WordPress 6.6.2 (#62422)

This change prepends react and react-dom script version strings with
'-umd' to force clients to request the updated umd build scripts 
(e.g., react.min.js?ver=18.3.1-umd).
---
Index: src/wp-includes/script-loader.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/wp-includes/script-loader.php b/src/wp-includes/script-loader.php
--- a/src/wp-includes/script-loader.php	(revision 59467)
+++ b/src/wp-includes/script-loader.php	(date 1732739207352)
@@ -106,8 +106,8 @@
 	);
 
 	$vendor_scripts_versions = array(
-		'react'                       => '18.3.1',
-		'react-dom'                   => '18.3.1',
+		'react'                       => '18.3.1-umd',
+		'react-dom'                   => '18.3.1-umd',
 		'react-jsx-runtime'           => '18.3.1',
 		'regenerator-runtime'         => '0.14.1',
 		'moment'                      => '2.30.1',