A hierarchical select element in a form affects the behavior of default submit button in that form. When user press Enter key to submit the form, the hidden button in hierarchical element changes the submit operation. So user cannot think the form doesn't work correctly.

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gold’s picture

gold
they/them
Location 20 minutes in the future
commented
Issue summary: View changes
Status: Active » Closed (cannot reproduce)

I'm not sure this is an issue with HS.

From a standard site install I can;
create a basic page > enter title & hit enter > node is submitted
create an article > enter title & hit enter > no response.

Article has a taxonomy term field. Regardless of the widget (Autocomplete or HS tested) hitting enter on the title did not submit the form.