Item13290: Bug in TreeBrowser with TOC when no headers are present for TOC

I Like to set up folding tables of contents like this:

%TREEBROWSER{"thread" title="*Contents*"}%
%TOC{}%

There's a bug that appears if the page doesn't actually have any section headers that are allowed to show in the TOC.

Example: With this code:

---+!!  %SPACEOUT{ "%TOPIC%" }%
 
%TREEBROWSER{"thread" title="*Contents*"}%
%TOC{}%

---++!! %FORMFIELD{"Temperament"}%
---+!! %FORMFIELD{"Suit"}%

| *Temperament* | A |
| *Suit* | B |
| *Color* | Green |
| *Alternate Names* | X, Y, Z |

TreeBrowser decides to use the TABLE as its data.

• screenshot:
  

If I include a single header to work with, the problem goes away.

---+!!  %SPACEOUT{ "%TOPIC%" }%
 
%TREEBROWSER{"thread" title="*Contents*"}%
%TOC{}%

---++!! %FORMFIELD{"Temperament"}%
---+!! %FORMFIELD{"Suit"}%

| *Temperament* | A |
| *Suit* | B |
| *Color* | Green |
| *Alternate Names* | X, Y, Z |


---++ Header

• screenshot:
  

I could almost understand this behaviour if there were a bullet list somewhere on the page.

However

• There are multiple blank lines after the code immediately following TREEBROWSER.
  It should stop looking for a list at the first blank line.

• There are no lists anywhere on the page. TREEBROWSER is supposed to operate on bullet (or numbered) lists.

• That's a table. TREEBROWSER is not supposed to operate on tables.

• It's operating on the rendered HTML of the table. That's just weird.

-- VickiBrown - 05 Mar 2015

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