We are using Collected Forms on our site, and have run into an odd situation. It appears that when a user's browser auto-populated our form, this triggered a form capture via the HS script.
We got two slightly different HS form captures, a few minutes apart. Our site only registered a single form submission, though (the second one, based on timestamps). We spoke with the user, and he told us he had filled out the form a couple of months ago, and so when he came back to fill it out again, his browser auto-populated it. He then edited the info and message, and submitted a few minutes later. This edited one is the one our site registered as an actual form submission.