Changing the start date of an appointment to a future date results in
changing end time (duration 1 hour).


Steps to reproduce the problem:
1.  New Meeting
2.  Make sure appointment not one hour long , say, 1 pm - 3 pm
3.  Change start date to tomorrow

Actual Results:
Start and end  now tomorrow's date, start time 1 pm, end time 3 pm

Expected Results:
Start and end date tomorrow's date, start time 1 pm, end time 3 pm