title: Why is my edmx file not updating
body: <p>I have a database first ASP.NET MVC 5 EF6 project. I'm using VS2015 CE. When I change my database (SQL Server 2012), I then go to VS to update my edmx file like this:</p>
  
  <ul>
  <li>Double click on the edmx file in the solution explorer</li>
  <li>In the edmx file right click on a blank space and select the option 'Update Model From Database'</li>
  <li>I click on the button 'Finish'</li>
  <li>I Rebuild the solution</li>
  </ul>
  
  <p>When I have a table with the columns ID, Column1, Column2 and I changed Column2 into Column2Changed, my edmx has a model with ID, Column1, Column2, Column2Changed instead of ID, Column1, Column2Changed.</p>
  
  <p>Also, when I change the datatype for a column, this change is not applied in my edmx.</p>