Framework Update

vendor/symfony/var-exporter/Internal/Exporter.php

@@ -149,6 +149,7 @@ class Exporter
                 }
                 if (null !== $sleep) {
                     if (!isset($sleep[$n]) || ($i && $c !== $class)) {
+                        unset($arrayValue[$name]);
                         continue;
                     }
                     $sleep[$n] = false;
@@ -164,6 +165,9 @@ class Exporter
                     }
                 }
             }
+            if (method_exists($class, '__unserialize')) {
+                $properties = $arrayValue;
+            }
 
             prepare_value:
             $objectsPool[$value] = [$id = \count($objectsPool)];
@@ -194,7 +198,7 @@ class Exporter
             case true === $value: return 'true';
             case null === $value: return 'null';
             case '' === $value: return "''";
-            case $value instanceof \UnitEnum: return ltrim(var_export($value, true), '\\');
+            case $value instanceof \UnitEnum: return '\\'.ltrim(var_export($value, true), '\\');
         }
 
         if ($value instanceof Reference) {