Default behavior for new properties related to retention on metadata

As a developer, I want to be confident that my application will behave in a predictable and safe manner when applying the Web UI update that contains the retention on metadata feature, even if I have not updated my Studio configuration yet.

AC
When default values are not defined for these element properties, then the following behavior applies:

nuxeo-file

• document

Default value is set to the current document to make it work by default.

• xpath

Default value is set to file:content by default, meaning that if the document is under retention the element will behave as if the property is retained even if it is not.

nuxeo-dropzone

• xpath

Default value is set to file:content by default, meaning that if the document is under retention the element will behave as if the property is retained even if it is not.