Version 4.3.0

applications/core/modules/admin/settings/contactus.php

@@ -42,9 +42,17 @@ class _contactus extends \IPS\Dispatcher\Controller
 	{
 		$form = $this->_getConfigForm();
 
-		if ( $values = $form->values() )
+		if ( $values = $form->values( true ) )
 		{
-			$form->saveAsSettings();
+			/* If we unselect 'everyone' and save, an empty string is passed through, so the default value is picked up in Settings::changeValues(),
+				which is the 'everyone' preference...the end result is that everyone gets rechecked when you uncheck it. To counter that, we'll store an invalid
+				value here. */
+			if( $values['contact_access'] === '' )
+			{
+				$values['contact_access'] = '-1';
+			}
+
+			$form->saveAsSettings( $values );
 
 			/* Clear guest page caches */
 			\IPS\Data\Cache::i()->clearAll();