BaseHtmlElement: Rebind Attribute callbacks when cloning

src/BaseHtmlElement.php

@@ -2,6 +2,7 @@
 
 namespace ipl\Html;
 
+use ReflectionException;
 use RuntimeException;
 
 /**
@@ -75,6 +76,9 @@ abstract class BaseHtmlElement extends HtmlDocument
     /** @var string Tag of element. Set this property in order to provide the element's tag when extending this class */
     protected $tag;
 
+    /** @var self */
+    private $selfRef;
+
     /**
      * Get the attributes of the element
      *
@@ -83,6 +87,8 @@ abstract class BaseHtmlElement extends HtmlDocument
     public function getAttributes()
     {
         if ($this->attributes === null) {
+            $this->selfRef = $this;
+
             $default = $this->getDefaultAttributes();
             if (empty($default)) {
                 $this->attributes = new Attributes();
@@ -353,12 +359,19 @@ public function renderUnwrapped()
         );
     }
 
+    /**
+     * @throws ReflectionException
+     */
     public function __clone()
     {
         parent::__clone();
 
         if ($this->attributes !== null) {
             $this->attributes = clone $this->attributes;
+
+            $this->attributes->rebind($this->selfRef, $this);
         }
+
+        $this->selfRef = $this;
     }
 }