Merge abe56c9 into c6e2b52

ui/widgets/sortable.js

@@ -979,6 +979,11 @@ return $.widget( "ui.sortable", $.ui.mouse, {
 				continue;
 			}
 
+			//@xwartz Never consider a container that's "display:none"
+			if ( this.containers[ i ].element.css( "display" ) === "none" ) {
+				continue;
+			}
+
 			if ( this._intersectsWith( this.containers[ i ].containerCache ) ) {
 
 				// If we've already found a container and it's more "inner" than this, then continue