gitweb via instaweb not showing log. Bug?

Hi,

Using git version 1.5.3.rc3.120.g68d422, I am seeing a problem with
git-instaweb not being able to show the commit logs.  For example, if
I git-clone the git repository, run git-instaweb and browse to:
  http://127.0.0.1:1234/?p=.git;a=log;h=v1.5.1.5
I see:
  Last change .
and no log of changes.

However, this does work using git version 1.5.2.4.  In that case, I do
see the log.

I came up with a test script and let bisect have a go.  It came up
with this commit:
e90fdc39b6903502192b2dd11e5503cea721a1ad is first bad commit
commit e90fdc39b6903502192b2dd11e5503cea721a1ad
Author: Johannes Schindelin [off-list ref]
Date:   Wed Aug 1 01:30:14 2007 +0100

    Clean up work-tree handling

[..snip..]

Known issue?

--
Brian