On Sat, Nov 8, 2025 at 2:08 PM D. Ben Knoble [off-list ref] wrote:

On Sat, Nov 8, 2025 at 2:05 PM D. Ben Knoble [off-list ref] wrote:

quoted

AFAICT, you need all of the mentioned options to trigger the bug.
Allowing ext-diff works fine, I don't think it's triggered in
non-cached diffs, and I've never seen it without --find-copies-harder.
Notably, s/quiet/exit-code works just fine.

I think I also spotted a difference in diff_from_contents, but not
sure if that's relevant.

Yeesh. You know how writing for others clarifies thoughts? Well...

I just noticed that diff_setup_done tweaks diff_from_contents based on
whether external diffs are allowed. Possibly relevant? I haven't been
able to easily identify a place where all 3 relevant options come
together, but this would be 2 of them (quiet and ext-diff).

-- 
D. Ben Knoble