Dmitry Gutov <dmitry@gutov.dev> writes:

> On 12/03/2025 00:33, Tomas Nordin wrote:
>> In the meantime I wrote two test cases in
>> test/lisp/vc/diff-mode-tests.el, one for a topmost and one for a
>> bottommost addition. They both fail before the patch but pass after it.
>> Maybe I could present them here as an attached patch as well?
>
> Yes, please!

Here it is, on top of todays master