In Git, you can do git log --stat --patch and you will be shown first the histogram and then the diff independent of the order of the options and the result is close to the default git format-patch output.

Jujutsu, on the other hand, has confusing (to me) behavior.

• jj log --stat --patch only shows the histogram, no patch.
• jj log --stat --git only shows the git-style diff, but no histogram.

From the help text is not clear to me why --stat should win over --patch and why --git wins over --stat. Maybe this can be explained to some extent with --stat being a diff formatting option, but then the question arises why combining --git and --color-words emits the error that they can't be combined while --stat and --git don't.

Similarly, I think jj diff --stat --git should show both a histogram and a diff.

The supporting code in DiffFormatArgs is quite a bit more complicated thant I would have expected it to be.