title: What is the difference between those 2 filter?
body: <p>here I have 2 time range filter, the first one is:</p>
  
  <p>```filter1:</p>
  
  <pre><code>{
    "range": {
      "end": {
        "gt": "now"
      }
    }
  },
  {
    "range": {
      "start": {
        "lte": "now"
      }
    }
  }
  </code></pre>
  
  <p>```
  and the second one is:</p>
  
  <p>```filter2:</p>
  
  <pre><code>{
    "range": {
      "end": {
        "gt": "now"
      },
      "start": {
        "lte": "now"
      }
    }
  }
  </code></pre>
  
  <p>```</p>
  
  <p>and I have a doc which is:</p>
  
  <p>```doc</p>
  
  <pre><code>{
    "start": "now-8m",
    "end": "now+8m"
  }
  </code></pre>
  
  <p>```</p>
  
  <h2>Here is the question, where filter1 works but filter2 doesn't work?</h2>