[Config] YamlReferenceDumper: No default value required for VariableNode with array example

Nyholm · Nyholm · commit 9104fd453944 · 2020-12-05T17:41:45.000+01:00
diff --git a/src/Symfony/Component/Config/Definition/Dumper/YamlReferenceDumper.php b/src/Symfony/Component/Config/Definition/Dumper/YamlReferenceDumper.php
@@ -17,6 +17,7 @@
 use Symfony\Component\Config\Definition\NodeInterface;
 use Symfony\Component\Config\Definition\PrototypedArrayNode;
 use Symfony\Component\Config\Definition\ScalarNode;
+use Symfony\Component\Config\Definition\VariableNode;
 use Symfony\Component\Yaml\Inline;
 
 /**
@@ -95,6 +96,9 @@ private function writeNode(NodeInterface $node, NodeInterface $parentNode = null
         } elseif ($node instanceof EnumNode) {
             $comments[] = 'One of '.implode('; ', array_map('json_encode', $node->getValues()));
             $default = $node->hasDefaultValue() ? Inline::dump($node->getDefaultValue()) : '~';
+        } elseif (VariableNode::class === get_class($node) && \is_array($example)) {
+            // If there is an array example, we are sure we dont need to print a default value
+            $default = '';
         } else {
             $default = '~';
 
