Thankfully, it is still possible to get back to the original photo. I understand that some edited versions are not always perfect! It would be so sad to no longer be able to revert to the original photo, in case something goes wrong while editing 😀.
As @BiggestDave has already mentioned (Thanks!), to view the original picture you can just click 'Edit' option on a previously edited photo and then revert it to its original state!
It doesn't bother me there was a change it bothers me there is no option to choose the default method. The product I paid for is now different to what I have which is in my opinion isn't acceptable with and we should get a choice to create new image as default like before with a toggle button in settings.