We should add a required flag in the data

Hello everyone.

I am having the same need as @edurenye in a project. The user needs to know which fields are mandatory, and the translation work must be able to be validated by leaving optional fields empty, since it could happen that the user wants the content in a specific language to not have data in such fields.

I am attaching here the updated patch to work with the latest stable version of the module (8.x-1.15).

I have encountered a situation where the "body" field is not required and is empty in the original translation, but it is validated as mandatory at the reviewing stage.

#9 works helped me.

However, we need to add more tests to check the standard and required fields when submitting.