Have hash collisions in Git ever been a problem for you?
What is the exact scenario in which a hash collision would be dangerous? (Like, you give some random person push access to your repository and... I'm really getting lost here... they override some commit with a different commit with the same hash? And that's somehow worse than them just creating a new commit with a different hash, which you would notice for sure? And the only reason you won't notice their Evil Change is because they sneaked it in inside a hash collision?)
What is the exact scenario in which a hash collision would be dangerous? (Like, you give some random person push access to your repository and... I'm really getting lost here... they override some commit with a different commit with the same hash? And that's somehow worse than them just creating a new commit with a different hash, which you would notice for sure? And the only reason you won't notice their Evil Change is because they sneaked it in inside a hash collision?)