Expected behavior When a user clicks a button that is an a input group it should treat the button as a button and not submit the form. Actual behavior When a user clicks a button that is an input group, who's buttons job is to launch a modal, the required field on the form, that is not being submitted by clicking the modal button, gives a required field error before the modal dialog launches. Resources (screenshots, code snippets etc.)

My work around for this was to turn the button into a span with the same data properties as the button to avoid the login form thinking it was being submitted.

To recreate this all you need to do is have a login form and on the password field have an input group that's a button that launches a modal dialog.