From fe475968dbd8a120e2c558161b686431ca49567d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20S=C5=82owik?= <pawel.slowik@zoho.com>
Date: Mon, 24 May 2021 22:48:58 +0200
Subject: [PATCH] Assure unserialized NodeProviderCollection contains only
 valid elements

This stops Psalm from complaining about MixedPropertyTypeCoercion
---
 src/Provider/Node/NodeProviderCollection.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/Provider/Node/NodeProviderCollection.php b/src/Provider/Node/NodeProviderCollection.php
index 11854b0..33cd608 100644
--- a/src/Provider/Node/NodeProviderCollection.php
+++ b/src/Provider/Node/NodeProviderCollection.php
@@ -50,6 +50,11 @@ class NodeProviderCollection extends AbstractCollection
             ],
         ]);
 
-        $this->data = $data;
+        $this->data = array_filter(
+            $data,
+            function ($unserialized): bool {
+                return $unserialized instanceof NodeProviderInterface;
+            }
+        );
     }
 }