Fixing truncate problem

src/Utility/Text.php

@@ -591,7 +591,7 @@ public static function truncate($text, $length = 100, array $options = [])
             $truncate = mb_substr($truncate, 0, $spacepos);
         }
         // If truncate still empty, then we don't need to count ellipsis in the cut.
-        if(!isset($truncate)){
+        if(mb_strlen($truncate) == 0){
 
            $truncate = mb_substr($text, 0, $length);
         }