Ticket #31798: 31798.diff

src/wp-includes/css/editor.css

@@ -894 +894 @@
         content: '\f221';
 }
 
+.rtl i.mce-i-undo:before {
+        content: '\f172';
+}
+
+.rtl i.mce-i-redo:before {
+        content: '\f171';
+}
+
 /* Editors */
 .wp-editor-wrap {
         position: relative;