Ticket #40818: 40818.patch

src/wp-includes/js/tinymce/plugins/wplink/plugin.js

@@ -101 +101 @@
 
                 function getSelectedLink() {
                         var href, html,
-                                node = editor.selection.getNode(),
+                                node = editor.selection.getStart(),
                                 link = editor.dom.getParent( node, 'a[href]' );
 
                         if ( ! link ) {