Required in data table form fields causes table validation to fail

When editing a layout with a data table (multivalue field for instance), if the input in the data table form is marked as required (and the data table too), when canceling the add/edit operation, table validation fails. It seems that some clean up of the form is missing.

Steps to reproduce:
1. Create a document and assure that you a multivalue field (bound to a editable data table)
3. Click the add button for that field
4. Click the cancel button to close the form
5. Try to create the document.

Attached a video reproducing the problem.