"log -v" not showing files, but "log --debug" does

[Greg Ward]

I'm looking at a rather strange changeset: every way to query
Mercurial shows that it modified one file, *except* "hg log -v".  That
is, "log -v" seems to think this changeset modified nothing, but I
know better, and so does the rest of Mercurial. The most striking
oddity is that "log --debug" reveals the truth.

Here is the "log --debug" version, which is correct:

"""
changeset:   104305:207e192fbd10a21bd293c01b788d0bb68df2975c
branch:      PACS-3-8-3
parent:      104291:2aff2c98fd87c696d31fe4e14241cce37f6a7700
parent:      104304:7eeec0142aee531b860ce506ecbf8d5fc4e93a0d
manifest:    103036:a781ed3076d529b4524b54268e26df62ddcf1df1
user:        Greg Ward <gward@*****>
date:        Thu Nov 26 21:02:43 2009 -0500
files:       LoadBuild/utilities/generatePacsVersion
extra:       branch=PACS-3-8-3
description:
generatePacsVersion: handle production builds from Mercurial.
"""

There are many ways to confirm this view of reality: "diff -c 104305",
"diff -r 104291:104305", "log -p -r 104305", compare output of
"manifest --debug", "status --rev 104291 --rev 104305".  All agree
that this changeset modified exactly one file.

But "log -v" does not agree; here is what it says:

"""
changeset:   104305:207e192fbd10
branch:      PACS-3-8-3
parent:      104291:2aff2c98fd87
parent:      104304:7eeec0142aee
user:        Greg Ward <gward@*******>
date:        Thu Nov 26 21:02:43 2009 -0500
description:
generatePacsVersion: handle production builds from Mercurial.
"""

Note the absence of any "files" line.  WTF?!?  I'm getting the same
result with 1.3.1ish and current stable.  Disabling all extensions
doesn't change things.  Any clue what's going on here?

Greg