magento2: Summary Count is Wrong Add Multiple Items to Cart using addProductsToCart

Preconditions (*)

1. Magento 2.4.2 Commerce
2. PHP 7.4

Steps to reproduce (*)

1. Add Multiple Items to Cart Using Graphql

mutation {
  addProductsToCart(
    cartId: "XRu4kdwSkA2Hi40PwO4jwkhZxa0bu5zA",
    cartItems: [
      {
      	quantity: 1.0,
        sku: "132110100209"
    	},
      {
        quantity: 1.0, 
        sku: "132110100210",
      }
    ]
  ) {
    cart {
      total_quantity
      items {
        product {
          name
          sku
        }
        quantity
      }
    }
  }
}

1. Check Cart data in Cart Section [Local Storage]

Expected result (*)

1. summary_count Should be 2
2. Items Must Contain 2 Items

Actual result (*)

1. summary_count is 1
2. There are 2 Items in Cart

Additional Info:

Issue: Only one item summary is displayed in Cart Icon - Summary

Note: Due to the above is : If we noticed that even the price is calculating wrong

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Please provide Severity assessment for the Issue as Reporter. This information will help during Confirmation and Issue triage processes.

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• [* ] Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.