Introduce keep_empty_properties_by_default option to force display of ed...

[blabno]

Introduce keep_empty_properties_by_default option to force display of editors even for empty properties.

[sbellity]

👍

[englercj]

While this does what you expect when generating the form, it adds unexpected behavior to the .getValue() method. Now all the blank fields that were not in the value have empty values on output. In that respect this key acts pretty much the same as required_by_default.

Instead, I would expect that fields that had no value on input and haven't changed have no json key on output with this property set. The required_by_default option would have them set because it considers them required fields, but this should not.

This is important for my application because the output of this form "inherits" values from a parent object. If the keys exist when I do .getValue() it will not inherit properly.