Ticket #45352: 45352.diff

wp-includes/formatting.php

@@ -2780 +2780 @@
  * @return string Converted content.
  */
 function wp_targeted_link_rel( $text ) {
+  
+  $original_text = $text;
+  
         // Don't run (more expensive) regex if no links with targets.
         if ( stripos( $text, 'target' ) !== false && stripos( $text, '<a ' ) !== false ) {
                 $text = preg_replace_callback( '|<a\s([^>]*target\s*=[^>]*)>|i', 'wp_targeted_link_rel_callback', $text );
         }
+  
+  // Return original link from wp_targeted_link_rel_callback after applying wp_targeted_link_rel if rel is empty.
+  if ( strpos( $text, 'rel=""' ) !== false ) {
+    return $original_text;
+  }
 
         return $text;
 }