problems in PBwiki tagged with table of contents

So I have a a page with a table of contents that has some repeated headers in it. The formatting is something like this:

1. Apples
a. Price
b. Availability
c. Taste

2. Oranges
a. Price
b. Availability
c. Taste

3. Conclusions
a. Apples
b. Oranges

Now my problem is, when you click on one of the subheadings under the "oranges" section (e.g. 2b), the page links to the same subheading in the apples section (i.e. 1b). When you click on the "apples" subheading under the conclusions section (section 3a), the page links to the first apples section (section 1). The problem seems to be because they all share the same anchor name, so the first one on the page is what everything defaults to. Am I doing something wrong here?