Adding bundle items to cart creates recursive dependency error

Question

Item at http://wenderella.com/castaging/index.php/fruit-basket.html

It is a bundle product, a fruit basket, with dynamic pricing. Each fruit is a simple product with no stock management.

Option 1 (Required): Add a fruit - watermelon, pineapple or honeydew - Dropdown input, you can select qty of fruits you want

Option 2 (Not Required): Add another fruit - watermelon, pineapple or honeydew - Dropdown input, you can select qty of fruits you want

When I just add Option 1 or Option 2 to cart, there's no problem, it goes through.

But if I select something in both options (e.g. I choose a watermelon in option 1, then a pineapple in option 2), the following error occurs:

Fatal error: Nesting level too deep - recursive dependency? in /home/blacklea/public_html/wenderella.com/castaging/app/code/core/Mage/Sales/Model/Quote/Item/Abstract.php on line 134

I followed all steps to create a bundle product exactly (or so I think). What am I doing wrongly??

I have tried disabling all extensions and the error remains.

Version: CE 1.9.3

Answer 1

Modify app/code/core/Mage/Sales/Model/Quote/Item/Abstract.php as stated below – only difference is , true being added to in_array() – and see if the exception disappears:

public function setParentItem($parentItem)
{
    if ($parentItem) {
        $this->_parentItem = $parentItem;
        // Prevent duplication of children in those are already set
        if (!in_array($this, $parentItem->getChildren(), true)) {
            $parentItem->addChild($this);
        }
    }
    return $this;
}

NB: Bear in mind that you're overriding a core file so for a more permanent solution you should either override the (child) class via a custom module or at least copy the vanilla file to app/code/local/Mage/Sales/Model/Quote/Item/Abstract.php and modify that one.