From f6a1e5ec3006df185a49f59d8356e13d9dc5cca9 Mon Sep 17 00:00:00 2001
From: JorisDebonnet <joris@funkytime.com>
Date: Thu, 8 Oct 2015 19:02:47 +0200
Subject: [PATCH] Bugfix for DropdownField->castedCopy

The Newsletter module crashed on it when viewing a sent Newsletter.
---
 forms/DropdownField.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/forms/DropdownField.php b/forms/DropdownField.php
index 861a26686..52be4be23 100644
--- a/forms/DropdownField.php
+++ b/forms/DropdownField.php
@@ -362,7 +362,9 @@ class DropdownField extends FormField {
 	 */
 	public function castedCopy($classOrCopy) {
 		$field = parent::castedCopy($classOrCopy);
-		$field->setHasEmptyDefault($this->getHasEmptyDefault());
+		if(method_exists($field, 'setHasEmptyDefault')) {
+			$field->setHasEmptyDefault($this->getHasEmptyDefault());
+		}
 		return $field;
 	}
 }