bug#13004: 24.2; vc-diff from vc-log doesn't show diff before renames (for Mercurial backend).

[Glenn Morris]

Glenn Morris wrote:

> Sorry, I didn't read properly. You were talking about calling "diff"
> from a log buffer. I still think using log -f may help, since otherwise
> it presumably looks like there is nothing to take a diff of. Does it
> help?

Answering my own question, no.
But what does

hg diff -r 214 -r 215 en-pronunciation_ru.rst

report for you?

For me, an equivalent diff command does not report any differences.
So this looks like an hg issue, not an Emacs one.