return if not unique needed

Author: mayeco

EventListener/StringGeneratorListener.php

@@ -72,6 +72,10 @@ private function generateId($property, Vivait\StringGenerator $annotation)
             $str = sprintf("%s%s%s", $annotation->prefix, $annotation->separator, $str);
         }
 
+		if (!$annotation->unique) {
+			return $str;
+		}
+
         if ($this->repo->findOneBy([$property => $str])) {
             return $this->generateId($property, $annotation);
         } else {