From f103648f8ca180694ee564818db4ce37d5698666 Mon Sep 17 00:00:00 2001
From: Thomas Portelange <thomas@lekoala.be>
Date: Wed, 26 Sep 2018 11:35:40 +0200
Subject: [PATCH] value can be something else than a string

if the value is not a string (an array for instance), sprintf will fail
---
 src/Forms/FormField.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Forms/FormField.php b/src/Forms/FormField.php
index 502163b0b..dce2688f8 100644
--- a/src/Forms/FormField.php
+++ b/src/Forms/FormField.php
@@ -1326,13 +1326,14 @@ class FormField extends RequestHandler
      */
     public function debug()
     {
+        $strValue = is_string($this->value) ? $this->value : print_r($this->value, true);
         return sprintf(
             '%s (%s: %s : <span style="color:red;">%s</span>) = %s',
             static::class,
             $this->name,
             $this->title,
             $this->message,
-            $this->value
+            $strValue
         );
     }