Ticket #13524: 13524.2.patch

wp-admin/js/widgets.js

@@ -135 +135 @@
                                         // Prevents jumping when dragging a widget from an open sidebar to a closed sidebar below.
                                         height = ui.item.hasClass('ui-draggable') ? $this.height() : 1 + $this.height();
                                         $this.css( 'min-height', height + 'px' );
+                                } else { 
+                                        var hashoverover;
+                                        $($wrap).mouseover(function() {
+                                                hashoverover = setTimeout( function() {
+                                                        $wrap.removeClass('closed'); },
+                                                100 );
+                                        });
+
+                                        $($wrap).mouseout(function() {
+                                                clearTimeout(hashoverover);
+                                        });
                                 }
                         },