Assisted-by tag

[Marius Spix <marius.spix@web.de>]

Hi there,

as the Linux kernel requires the new Assisted-by tag for AI-assisted
commits, I was researching how git handles such tags. Thereby I
observed the following behaviour:

git commit --signoff
* adds an empty line before the Signed-off-by tag
* ignores the Signed-off-by tag by checking for an empty commit message

git commit --trailer "\nAssisted-by: OpenAI"
* does not add an empty line (the "\n" is not converted to a newline)
* does not ignore the tag by checking for empty commit message

Since there will be more and more AI-assisted commits in projects like
the Linux kernel in the future, this should be taken in account.

When merging or squashing commits, that tag should also be
automatically applied to the new commit message to make it clear that
the commit is tainted by AI.

Your opinion?

Best regards

Marius