On 2019-05-09 11:51 AM, Emily Shaffer wrote: > I'm still not sure I see the value of the extra header proposed here. > I'd appreciate an explanation of how you think it would be used, Drew. I'm not just thinking about your run of the mill mail reader, but also mail readers which are aware of git and could use it to provide git-specific features for browsing patchsets. Distinguishing it from the mecahnism used for normal conversation allows us to have fewer heuristics in such software.