Fix Model::__clone() (#19291)

* Fix Model::__clone()

Reset validators and errors after cloning to prevent changing cloned model via inner objects of clone like as InlineValidator

* Update CHANGELOG.md

Co-authored-by: Bizley <pawel@positive.codes>

framework/CHANGELOG.md

@@ -6,6 +6,7 @@ Yii Framework 2 Change Log
 
 - Bug #19243: Handle `finfo_open` for tar.xz as `application/octet-stream` on PHP 8.1 (longthanhtran)
 - Bug #19235: Fix return type compatibility of `yii\web\SessionIterator` class methods for PHP 8.1 (virtual-designer)
+- Bug #19291: Reset errors and validators in `yii\base\Model::__clone()` (WinterSilence)
 
 
 2.0.45 February 11, 2022

framework/base/Model.php

@@ -1052,4 +1052,15 @@ class Model extends Component implements StaticInstanceInterface, IteratorAggreg
     {
         $this->$offset = null;
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __clone()
+    {
+        parent::__clone();
+
+        $this->_errors = null;
+        $this->_validators = null;
+    }
 }