Prevents ArrayIterator to be cloned

See https://stackoverflow.com/a/34468458/738091

Author: gquemener

src/Doctrine/Instantiator/Instantiator.php

@@ -2,6 +2,7 @@
 
 namespace Doctrine\Instantiator;
 
+use ArrayIterator;
 use Doctrine\Instantiator\Exception\InvalidArgumentException;
 use Doctrine\Instantiator\Exception\UnexpectedValueException;
 use Exception;
@@ -195,6 +196,8 @@ private function hasInternalAncestors(ReflectionClass $reflectionClass) : bool
      */
     private function isSafeToClone(ReflectionClass $reflection) : bool
     {
-        return $reflection->isCloneable() && ! $reflection->hasMethod('__clone');
+        return $reflection->isCloneable()
+            && ! $reflection->hasMethod('__clone')
+            && ! $reflection->isSubclassOf(ArrayIterator::class);
     }
 }