Validation errors showing on next group of fields on pressing enter on current field group

[Romano Fonbuena]

I have a multi-step form with most of the code based on the multi-step example on the site, and when pressing enter on the first field group shows the validation errors on the next group of fields too. Any insights on how to work around this?

Demo of the issue here: https://jsfiddle.net/budji/qv1y372a/20/

TIA