elasticsales/backbone-forms — comment on commit 4f27d520db5e9c517588bf48737aa2f714947630
File:  line 0
By philfreo:

Nope -- happens in both Safari and Firefox though:
List with NestedModel with a Text field that has a "required" validator.
Add new list item, put focus in that Text field. Press Enter without typing anything in it.

Without this patch the browser submits the form for me using GET to the same URL (the form fields go into the qs)