Problem/Motivation
Modern browsers perform client-side validation for certain input fields. The easy example is for an input marked required.
This is only triggered when the browser detects a type="submit" being clicked.
When you attach an #ajax handler to a submit button, this seems to prevent that from correctly firing.
This is not a real validation problem, as we perform our own server-side validation. But it does negatively affect the UX.
Proposed resolution
TBD
Remaining tasks
Find a solution
User interface changes
Native validation will work for all submit buttons, not just non-Ajax ones
API changes
TBD
Data model changes
N/A