Yes. You can alter the content of the commit freely, so it's pretty easy to just fuzz the data until you get a commit you like. This was the premise of Stripe

Yes. You can alter the content of the commit freely, so it's pretty easy to just fuzz the data until you get a commit you like. This was the premise of Stripe CTF V3's second challenge ("Level 1: Mine me a Gitcoin") this year.