Hi,

Assume you have a collection of documents belonging to a directory. The documents get created as embedded forms in the directory form. All is fine, validation (also of the documents) works until.... You create and submit an empty embeded form.

The following happens:
No instance of document is created, no validators are called. Instead a NULL value is put in the collection of documents in the directory, which of course leads to lots of errors.

I think the form component should ignore an empty embedded form, or reject it in general, but not put a NULL value in the underlying collection without raising any error.