When meta key not found, all meta will be returned

[erikdemarco]

Describe the bug
when we want to query metadata by key it will return all meta if our requested key not found. is this a bug? or its the normal behaviour, imagine we store sensitive data in meta, all will be shown publicly naked

To Reproduce
Steps to reproduce the behavior:
1.install woocommerce
2. import products
3. add "testing" meta to 1 latest product
4. query like this:

query NewQuery {
  products(where: {type: SIMPLE}, first: 5) {
    edges {
      node {
        ... on SimpleProduct {
          name
        }
        metaData(key: "testing") {
          value
          key
        }
      }
    }
  }
}

5. now query any invalid meta key. example:

query NewQuery {
  products(where: {type: SIMPLE}, first: 5) {
    edges {
      node {
        ... on SimpleProduct {
          name
        }
        metaData(key: "testing123") {
          value
          key
        }
      }
    }
  }
}

Expected behavior
should not show data we not requested

Screenshots
when meta key found:

when meta key not found:

Desktop (please complete the following information):

• OS: linuxmint
• Browser ms edge
• Version Version 128.0.2739.54 (Official build) (64-bit)

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Plugin Versions

• WooGraphQL Version: …
• WPGraphQL Version: …
• WordPress Version:
• WooCommerce Version:

Additional context
Add any other context about the problem here.