title: Angular UI-Grid cell edit input deleting on scroll
body: <p>I am using angular ui-grid in my application. If you double click the edit column to enable cell edit, you get a number input field. Input a number in the field and then scroll in the grid so that the cell is no longer visible. When you scroll back up the input is no longer there. </p>
  
  <p>In my app I have another editable cell that contains a dropdown and that doesn't disappear. Just the number input field.</p>
  
  <p>Here is a plnkr demoing my issue : 
  <a href="http://plnkr.co/edit/8f4MrC2xJLJ3kYBQzG8c?p=preview" rel="nofollow">http://plnkr.co/edit/8f4MrC2xJLJ3kYBQzG8c?p=preview</a></p>
  
  <p>I tried setting ng-model to :</p>
  
  <pre><code>ng-model = $scope.edit;
  </code></pre>
  
  <p>and </p>
  
  <pre><code>ng-model = $scope.gridOptions.data.offset;
  </code></pre>
  
  <p>and neither seems to make a difference.</p>
  
  <p>Any ideas as to why this is happening and how to stop it?</p>