Tooltip: Seperate restoring title attribute from assigning current-variable, in case currentTitle is undefined.

Author: jzaefferer

ui/jquery.ui.tooltip.js

@@ -117,8 +117,9 @@ $.widget("ui.tooltip", {
 		if (!this.current)
 			return;
 
-		var current = this.current.attr("title", this.currentTitle);
+		var current = this.current;
 		this.current = null;
+		current.attr("title", this.currentTitle);
 
 		if (this.options.disabled)
 			return;