Re: Emacs git repo mangled

[Gerd Möllmann]

> Thanks, now done (208f0578d1).  Michael, you can now use 
> admin/git-bisect-start.

I'm not opposing anything, but I wonder if mentioning of --first-parent
somewhere might be useful to others, because I find it pretty useful.

This is why I am using it, all the time so far, in Emacs, which is
admittedly a small sample size:

We have master with frequent merges from emacs-28.  If I know that a
problem exists in master, but not in emacs-28, or if I suspect that is
the case, I don't want to waste time checking commits incoming from
emacs-28.

You have to know what you're doing, as always, and YMMV, and blahblah.