Marc Branchaud [off-list ref] writes:
Given this documented connection between %d/%D and --decorate, it seems
reasonable for a reader to assume that --decorate=auto would do the same
thing regardless of whether or not a --format=...%d... was present.
...
I note that currently --decorate has no effect at all if the --format
doesn't contain %d or %D. To me this bolsters the argument for making
--decorate=no suppress %d/%D.
OK, that's convincing enough.
I no longer mind cooking such a change a bit longer than usual in
'next' to see if anybody screams, and the have it graduate to a
released version to further see what happens.
Thanks.