title: Restore Deleted Field from Entity Framework Model W/O deleting the entity
body: <p>I have several Entity Framework entities that I deleted a few fields from. </p>
  
  <p>(I thought that the consumers of the model would not need those fields.  Turns out now that they do.)</p>
  
  <p>I need to get those fields back in.  I tried doing an "Update from Database" but that does not restore them.  (I guess it is remembering that I wanted them deleted.)</p>
  
  <p>I know I can just Delete then re-add the entity, but that causes other problems (I have several FK associations that needed to be renamed.  I don't want to do them again.)</p>
  
  <p>How can I mark those fields for restoring?  </p>