fixes

vendor/laravel/serializable-closure/src/SerializableClosure.php

@@ -62,6 +62,17 @@ class SerializableClosure
         return $this->serializable->getClosure();
     }
 
+    /**
+     * Create a new unsigned serializable closure instance.
+     *
+     * @param  Closure  $closure
+     * @return \Laravel\SerializableClosure\UnsignedSerializableClosure
+     */
+    public static function unsigned(Closure $closure)
+    {
+        return new UnsignedSerializableClosure($closure);
+    }
+
     /**
      * Sets the serializable closure secret key.
      *

vendor/laravel/serializable-closure/src/Serializers/Native.php

@@ -10,6 +10,7 @@ use Laravel\SerializableClosure\Support\ClosureScope;
 use Laravel\SerializableClosure\Support\ClosureStream;
 use Laravel\SerializableClosure\Support\ReflectionClosure;
 use Laravel\SerializableClosure\Support\SelfReference;
+use Laravel\SerializableClosure\UnsignedSerializableClosure;
 use ReflectionObject;
 use UnitEnum;
 
@@ -379,7 +380,7 @@ class Native implements Serializable
 
                     $item = $property->getValue($data);
 
-                    if ($item instanceof SerializableClosure || ($item instanceof SelfReference && $item->hash === $this->code['self'])) {
+                    if ($item instanceof SerializableClosure || $item instanceof UnsignedSerializableClosure || ($item instanceof SelfReference && $item->hash === $this->code['self'])) {
                         $this->code['objects'][] = [
                             'instance' => $data,
                             'property' => $property,
@@ -452,7 +453,7 @@ class Native implements Serializable
             }
 
             unset($value);
-        } elseif (is_object($data) && ! $data instanceof SerializableClosure) {
+        } elseif (is_object($data) && ! $data instanceof SerializableClosure && ! $data instanceof UnsignedSerializableClosure) {
             if (isset($this->scope[$data])) {
                 $data = $this->scope[$data];
 

vendor/laravel/serializable-closure/src/UnsignedSerializableClosure.php

@@ -0,0 +1,82 @@
+<?php
+
+namespace Laravel\SerializableClosure;
+
+use Closure;
+use Laravel\SerializableClosure\Exceptions\PhpVersionNotSupportedException;
+
+class UnsignedSerializableClosure
+{
+    /**
+     * The closure's serializable.
+     *
+     * @var \Laravel\SerializableClosure\Contracts\Serializable
+     */
+    protected $serializable;
+
+    /**
+     * Creates a new serializable closure instance.
+     *
+     * @param  \Closure  $closure
+     * @return void
+     */
+    public function __construct(Closure $closure)
+    {
+        if (\PHP_VERSION_ID < 70400) {
+            throw new PhpVersionNotSupportedException();
+        }
+
+        $this->serializable = new Serializers\Native($closure);
+    }
+
+    /**
+     * Resolve the closure with the given arguments.
+     *
+     * @return mixed
+     */
+    public function __invoke()
+    {
+        if (\PHP_VERSION_ID < 70400) {
+            throw new PhpVersionNotSupportedException();
+        }
+
+        return call_user_func_array($this->serializable, func_get_args());
+    }
+
+    /**
+     * Gets the closure.
+     *
+     * @return \Closure
+     */
+    public function getClosure()
+    {
+        if (\PHP_VERSION_ID < 70400) {
+            throw new PhpVersionNotSupportedException();
+        }
+
+        return $this->serializable->getClosure();
+    }
+
+    /**
+     * Get the serializable representation of the closure.
+     *
+     * @return array
+     */
+    public function __serialize()
+    {
+        return [
+            'serializable' => $this->serializable,
+        ];
+    }
+
+    /**
+     * Restore the closure after serialization.
+     *
+     * @param  array  $data
+     * @return void
+     */
+    public function __unserialize($data)
+    {
+        $this->serializable = $data['serializable'];
+    }
+}