Quick answer: Adopt a commit convention with a clear subject and a body explaining the why, so history becomes a searchable record that helps future debugging.
A history of "fix" commits helps nobody. Good messages make the log a tool. Here is how to write them.
How to fix it
1. Write a clear subject
Summarize the change in one concise imperative line so the log scans easily.
2. Explain the why in the body
Capture the reasoning and context, not just what changed, so future readers understand the intent.
3. Adopt a convention
Use a shared format (type and scope) so messages are consistent and tooling can parse them.
Catching the ones you can't reproduce
The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.
Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.
This is where a tool like Bugnet earns its place. Its SDK captures every error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.
A crash you can name from its stack trace is a crash you can usually fix in minutes.