Fix #1192

modules/custom_fields/add.php

@@ -41,7 +41,15 @@ include_once __DIR__.'/../../core.php';
 
     <div class="row">
 		<div class="col-md-12">
-			{[ "type": "textarea", "label": "<?php echo tr('Contenuto'); ?>", "name": "content", "required": 1, "value": "$content$" ]}
+			<?php
+			echo input([
+                'type' => 'textarea',
+                'label' => tr('Contenuto'),
+                'name' => 'content',
+				'required' => 1,
+                'value' => $record['content'],
+            ]);
+			?>
 		</div>
 	</div>