From e2133440af0b3f69317f4bec8212141f44526ca6 Mon Sep 17 00:00:00 2001
From: fumikito <guy@hametuha.com>
Date: Tue, 16 Jul 2024 22:21:31 +0900
Subject: [PATCH] Avoid null be saved.

---
 src/Tarosky/TSCF/UI/Fields/Input.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Tarosky/TSCF/UI/Fields/Input.php b/src/Tarosky/TSCF/UI/Fields/Input.php
index 062e868..ada52bf 100644
--- a/src/Tarosky/TSCF/UI/Fields/Input.php
+++ b/src/Tarosky/TSCF/UI/Fields/Input.php
@@ -187,7 +187,7 @@ public function save_data() {
 	 * @return mixed
 	 */
 	protected function normalize_save_data( $data ) {
-		return $data;
+		return $data ?? '';
 	}
 
 	/**