If the headings have a manually inserted number in front, the TOC malfunctions.
(This happens if the number is inserted manually, NOT based on an outline.)

Step-by-step procedure to replicate the problem:

1. Create a odt file with some text
2. Create 2-3 levels of headings (Heading1, Heading2, etc.)
3. In the text for a few headings, insert a number. 
   (e.g. "1. Introduction").
4. Insert a TOC for the document. 
5. Insert hyperlinks in the TOC by adding "LS" and "LE" to the top-level entry
of TOC, and then clicking on the "All" button. 
6. Click on a line of TOC that does not have such a number. Writer jumps to the
corresponding page in the document, which is the correct expected behavior. 
7. Next, click on the entry of the TOC that contains a manually inserted number. 
The Writer jumps to the top of the CURRENT page; not to the actual text.

This is a defect because the behavior of the hyperlink should not depend upon
what is the content of the heading.