From a8b986e35e15d93ae1d57131077808a2e7267694 Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Tue, 6 Oct 2020 18:40:22 +0200
Subject: [PATCH] [VarDumper] fix truncating big arrays

---
 src/Symfony/Component/VarDumper/Cloner/VarCloner.php        | 2 +-
 .../Component/VarDumper/Tests/Cloner/VarClonerTest.php      | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/Symfony/Component/VarDumper/Cloner/VarCloner.php b/src/Symfony/Component/VarDumper/Cloner/VarCloner.php
index a0e2f3824f..8c4221220e 100644
--- a/src/Symfony/Component/VarDumper/Cloner/VarCloner.php
+++ b/src/Symfony/Component/VarDumper/Cloner/VarCloner.php
@@ -247,7 +247,7 @@ class VarCloner extends AbstractCloner
                         $stub->position = $len++;
                     } elseif ($pos < $maxItems) {
                         if ($maxItems < $pos += \count($a)) {
-                            $a = \array_slice($a, 0, $maxItems - $pos);
+                            $a = \array_slice($a, 0, $maxItems - $pos, true);
                             if ($stub->cut >= 0) {
                                 $stub->cut += $pos - $maxItems;
                             }
diff --git a/src/Symfony/Component/VarDumper/Tests/Cloner/VarClonerTest.php b/src/Symfony/Component/VarDumper/Tests/Cloner/VarClonerTest.php
index 2d55a073ef..e37482fca9 100644
--- a/src/Symfony/Component/VarDumper/Tests/Cloner/VarClonerTest.php
+++ b/src/Symfony/Component/VarDumper/Tests/Cloner/VarClonerTest.php
@@ -162,7 +162,7 @@ EOTXT;
                     'Level 3 Item 3',
                 ],
                 [
-                    'Level 3 Item 4',
+                    999 => 'Level 3 Item 4',
                     'Level 3 Item 5',
                     'Level 3 Item 6',
                 ],
@@ -242,7 +242,7 @@ Symfony\Component\VarDumper\Cloner\Data Object
                     [1] => Array
                         (
                             [0] => 2
-                            [2] => 7
+                            [1] => 7
                         )
 
                     [2] => Array
@@ -299,7 +299,7 @@ Symfony\Component\VarDumper\Cloner\Data Object
 
             [7] => Array
                 (
-                    [0] => Level 3 Item 4
+                    [999] => Level 3 Item 4
                 )
 
         )