I agree that the ticket id should go somewhere in the commit message. Certainly if things like pull requests are tied to tickets. However I get a little concerned that such sentiments are so popular here. Because the ticket id is a nice contextual link. But the commit message should be self-contained with regards to the change.[1]

It’s a version control system. That includes an explanation as well. The explanation for each revision is integral.

And I don’t think people here really disagree with that. Just that they might prefer to put all that integral information somewhere else—the information (princess) is in another castle, Mario. Why? Why not at least just copy-paste the relevant information into the version control system proper? I see this all the time; people often do the same with GitHub pull requests—paragraphs upon paragraphs in the pull request description and then just a “Merge <convoluted URL>” in the merge commit message!

It’s not that I blame people for this. Maybe Git is just so unergonomic that many would prefer to offload everything into another interface (even Jira).

[1] My tickets will usually have all the history. Maybe a lot of back and forth. The commit message though will just have what was done when all was said and done—no back and forth, just the result. And some of my tickets probably don’t even have a description body since what I ended up doing is just described in the commit message.