Re: EWW bugs should be fixed on emacs-25 branch

[Eli Zaretskii <eliz@gnu.org>]

> From: John Wiegley <jwiegley@gmail.com>
> Cc: dak@gnu.org,  larsi@gnus.org,  emacs-devel@gnu.org
> Date: Fri, 25 Dec 2015 09:23:44 -0800
> 
> > AFAIK, Git doesn't track cherry-picks in the DAG.
> 
> What it does track are "patch ids", that is, the SHA of the diff represented
> by a given commit against its parent:
> 
>     https://www.kernel.org/pub/software/scm/git/docs/git-patch-id.html
> 
> This allows the merging algorithm to know whether it's attempting to bring in
> a change that has already been seen on the target branch.

Since what Git version?

>   "git cherry can compare a branch with its upstream branch and find which
>   commits have been upstreamed and which haven’t. This command is particularly
>   clever because, thanks to git patch-id, it can correctly spot when a commit
>   has been upstreamed, even when the upstreaming process resulted in changes
>   to the commit message, line numbers, or whitespace."
> 
>     (from http://blog.adamspiers.org/2013/09/19/easier-upstreaming-with-git/)

How does "git cherry" enter the picture?  We were talking about
cherry-pick and merge commands.