JSPWiki Upgrade with Subversion Provider - page author unknown

I just upgraded from JSPWiki 2.4 to 2.8.2. I use the SubversionProvider and at
the same time upgraded subversion to 1.6.2, the latest svnkit 1.3 and the
latest subversion provider.

My page author at the bottom with the page revision is listed as unknown.

This worked before the upgrade.

Any ideas?

Thanks,

Glenn