Acidfree and Meta Tags Incompatible

I got this problem when meta tags was enabled. I didn't catch it soon enough, and got many dozens of acidfree categories created that had to be manually deleted: OK, the problem is described here with a few different fixes: http://drupal.org/node/179362 For now, I have not applied any fixes. Just removed "heritage Albums" from the list of categories used to create meta tags, and manually deleted all new acidfree album categories.