Bug report: custom component bool type properties

[david.wylie]

Booleans being None on creation was discussed a while back :

Uninitialized booleans in Data Tables

The initial value is “None”. I think this is a bug for a column that is meant to be True or False. I vote for it being False on creation through the IDE if we can’t set default values ourselves.

I think it’s wrong, especially when the IDE shows it as unchecked which, not unreasonably, could be assumed to be False.