What's the meaning of base_properties::has_dynamic_property() ?

[Michael Goffioul]

Hi (John),

I'm wondering what's the meaning of
base_properties::has_dynamic_property() method? It only returns true
when the name is in base_properties::dynamic_properties member, but
that only happens after base_properties::set_dynamic has been called
at least once.

This means that if you create a dynamic property then happen to call
has_dynamic_property(), it will return false. Change the property
value (which in fine calls set_dynamic), then it returns true. Is this
intentional?

Michael.