[Form] fix some docblocks and type checks

symfony · Jan 30, 2019 · ec0c371 · ec0c371
1 parent 3cfb558
commit ec0c371
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/Symfony/Component/Form/AbstractType.php b/src/Symfony/Component/Form/AbstractType.php
@@ -52,7 +52,7 @@ public function configureOptions(OptionsResolver $resolver)
      */
     public function getBlockPrefix()
     {
-        return StringUtil::fqcnToBlockPrefix(\get_class($this));
+        return StringUtil::fqcnToBlockPrefix(\get_class($this)) ?: '';
     }
 
     /**