Magento2 Add multiple configurable items into cart with same parent product

Magento2 multiply the qty of first item if add two configurable item into cart programmatically with same parent product.

$items = [
        [
            'product_id'=>'47',
            'parent_id'=>'62',
            'qty'=>1
        ],
        [
            'product_id'=>'48',
            'parent_id'=>'62',
            'qty'=>1
        ]
    ];

foreach($items as $item){
    if(isset($item['parent_id']) && !empty($item['parent_id'])){
        //$quote = $checkoutSession->getQuote();
        $product = $productModel->getById($item['parent_id']);
        $childProduct = $productModel->getById($item['product_id']);
        $productAttributeOptions = $product->getTypeInstance(true)->getConfigurableAttributesAsArray($product);
        $options = [];
        foreach($productAttributeOptions as $option){
            $options[$option['attribute_id']] =  $childProduct->getData($option['attribute_code']);
        }

        $objParam = new MagentoFrameworkDataObject(
            [
                'product' => $product->getId(),
                'qty' => $item['qty'],
                'super_attribute' => $options
            ]
        );        
        $quote->addProduct($product, $objParam);
    } else {
        $product= $productModel->getById($item['product_id']);
        $quote->addProduct($product, intval($item['qty']));
    }
}
$quote->save(); 

Any help will be appreciated, Thank you