Ticket #54548: 54548.2.diff

src/js/_enqueues/admin/edit-comments.js

@@ -1032 +1032 @@
                         else if ( rtop - 20 < scrollTop )
                                 window.scroll(0, rtop - 35);
 
-                        $('#replycontent').trigger( 'focus' ).on( 'keyup', function(e){
-                                if ( e.which == 27 )
-                                        commentReply.revert(); // Close on Escape.
-                        });
+                        $( '#replycontent' ).trigger( 'focus' ).on( 'keyup', function( e ) {
+                                // Close on Escape. Account for Input Method Editor (IME) converters.
+                                if ( e.which === 27 && ! e.originalEvent.isComposing ) {
+                                        commentReply.revert();
+                                }
+                        } );
                 }, 600);
 
                 return false;