I filled in a website active form (an online insurance claim), but because they had very little documentation, I started to fill it in to find out what information I needed. I intended and did abandon the page before the "submit button" closing the tab because I needed a real phone number (I had filled in a dummy just to progress the form). Well the claim was submitted and I got an email acknowledgement. I did not hit the submit button. I thought it an odd fault with the website and didn't think much of it, (it is just a pain to have to go and correct information). Well I am pretty sure it happened again. On an unrelated website with a complaint form, I filled in the form and left up in the browser, with the intention of rereading it in an hour or so to see if it made sense. But I decided not to proceed and just closed the browser. The form was submitted and I got a reply. Pretty sure I did not hit the submit button. It may be a configuration error or a extension problem but I think it happened with the 112 update, but I can't be sure. It is certainly only recent (~28 April ~8 June) but I have never used either of these online forms before so it may be coincidence.