MR 239157: Trusting the Agent's Assumption Backfired

TL;DR

• Assumed the agent had correctly identified a real problem and implemented its suggested fix
• After much digging and a maintainers review, no one could reproduce the issue
• Turns out it wasn’t a problem at all
• Now having to backtrack and close out the issue
• Reinforced that making assumptions is something to avoid when possible

What happened

On https://gitlab.com/gitlab-org/gitlab/-/merge_requests/239157, I assumed the agent had correctly identified the problem, so I went ahead and implemented its suggested fix. After a lot of digging, and after a maintainers review where the issue couldn’t be reproduced, it turned out there wasn’t actually a problem at all. I’m now having to backtrack and close out the issue.

Takeaway

This was a revealing and disappointing experience. It showed me that making assumptions just isn’t a good idea when it can be avoided.