I was surprised when the exact same thing happened the first time I "played" with Code :D ! Discovering this the hard way. Well not that hard, because of cours

I was surprised when the exact same thing happened the first time I "played" with Code :D ! Discovering this the hard way. Well not that hard, because of course I tried it first on a copy of the project so haven't lost anything (if not time). But even if I agree that what is going to happen is unclear for some (included me at the time), and a total wipe of your work is excruciating, you don't "try things" on the only copy of 3 months of work.