[FrameworkBundle] metadata_update_threshold default value must be an int

Author: dunglas

DependencyInjection/Configuration.php

@@ -492,7 +492,7 @@ private function addSessionSection(ArrayNodeDefinition $rootNode)
                         ->scalarNode('gc_maxlifetime')->end()
                         ->scalarNode('save_path')->defaultValue('%kernel.cache_dir%/sessions')->end()
                         ->integerNode('metadata_update_threshold')
-                            ->defaultValue('0')
+                            ->defaultValue(0)
                             ->info('seconds to wait between 2 session metadata updates')
                         ->end()
                     ->end()

Tests/DependencyInjection/ConfigurationTest.php

@@ -235,7 +235,7 @@ protected static function getBundleDefaultConfig()
                 'cookie_samesite' => null,
                 'gc_probability' => 1,
                 'save_path' => '%kernel.cache_dir%/sessions',
-                'metadata_update_threshold' => '0',
+                'metadata_update_threshold' => 0,
             ),
             'request' => array(
                 'enabled' => false,