We've actually changed tracking systems over the years (meaning that the link in the commit message is no longer valid). So, it's best to include both the link

We've actually changed tracking systems over the years (meaning that the link in the commit message is no longer valid). So, it's best to include both the link and the actual text. > A commit that does that but also introduces a small functional change, makes that change invisible. While it's sometimes possible to separate the actual change from the formatting change by ignoring whitespace if the diff, it's definitely better to make each type of change in a separate commit.