title: Unable to fetch contacts using CNContactStore in iOS 12.4.1 (iPhone XR). Works well in even 13 beta or below 12.4.1
body: <p>I am fetching contacts and displaying it using my custom UI.
   I am facing one weird issue, CNContactStore class does not give me contacts, It returns an empty array. </p>
  
  <p>Below is my code.</p>
  
  <pre><code>let contactStore = CNContactStore()
  
  let keysToFetch = [
          CNContactFormatter.descriptorForRequiredKeys(for: .fullName),
          CNContactGivenNameKey,
          CNContactMiddleNameKey,
          CNContactFamilyNameKey,
          CNContactPhoneNumbersKey
          ] as [Any]
  
      //Get all the containers
      var allContainers: [CNContainer] = []
      do {
          allContainers = try contactStore.containers(matching: nil)
  
      } catch let errorToShow{
  
          //Handling error
      }
  </code></pre>
  
  <p>My code is working for below 12.4.1 and in iOS 13 all beta versions. Right now I am testing it in iPhone XR.</p>