Bug: When editing the contents of a family, occasionally the grid seems to lose a grasp of the data and the grid data locks up.  If the user clicks 'Commit Changes' at this point, it will save the family with no data in it and all of its contents will be lost.  The Fix: Adding a checker on the store to see if the data was lost before committing the save. I am not certain I am checking the right place, but it ought to be right.