Hey there! Here's a workaround for another forms bug.
Wish it were really new, but it seems to have been introduced in the
forms2.js dated 2017-06-23. Just tuned in to it today thanks to a DM on the Community.
The bug: unchecked required checkboxes no longer show an error message. The checkbox is focused and it does stop the form from submitting, but because of the lack of error message, users won't know why.
Compare this buggy behavior when Submit is pressed:
And this expected behavior:
It's annoying that we have to fix it, but at least it's easy…