[Zope-CMF] Event.py

[Kevin Carlson]

In looking at the source for Event.py (from the CMFCalendar product) I
noticed that the edit method has many keywords that can be passed in, but
there is not any checking done to see if the values are set to None.  IMHO,
I think that if the edit method is called and a keyword is set to none
(e.g., EffectiveDay) then the code to update the corresponding property
should not be called.  Anyone care to weigh in on this issue?

Kevin