title: Firebase realtime database rules are not working
body: <p>I have the following firebase setup:</p>
  
  <pre><code>- root
    - v1
      - auth
       - "key1" : "value",
       - "key2" : "value,
       - ...
      - config
      - announcements
  </code></pre>
  
  <p>I want that everything should have <code>".write" :"auth!=null"</code>
  And that everything is readable except for <code>auth</code> that should be <code>".read" : "auth!=null"</code></p>
  
  <p>I have tried the following rules but they don't work!</p>
  
  <pre><code>{
      "rules": {
          ".read": true,
          ".write": "auth != null",
          "v1": {
              ".read": true,
              ".write": "auth != null",
              "auth": {
                  ".read": "auth != null",
                  ".write": "auth != null"
              }
          }
      }
  }
  </code></pre>