title: Azure resource graph returns null for a config while the same is present in Json view of resource
body: <p>While running the below query I get null on internalDomainNameSuffix, but the same has value on Json view from the resource page overview.</p>
  <pre><code>resources | where type == 'microsoft.network/networkinterfaces' and name == 'interface1'| project  name, properties.dnsSettings.internalDomainNameSuffix
  </code></pre>
  <p>The query result shows correct data for a few resources, but shows null in others while it still shows data through the Json view (It is inconsistent, shows data for some resources but not for others).</p>