[BUG] New exporter exports TOC twice

[Thorsten Jolitz <tjolitz@gmail.com>]

[double-post to bring this issue to the attention of Nicolas]

Exporting a Worg file with this header (#+TOC: headlines 2) 

,-----------------------------------------------------------------------------------------
| #+OPTIONS: H:3 num:nil \n:nil @:t ::t |:t ^:{} -:t f:t *:t TeX:t LaTeX:t
|             skip:nil d:(HIDE) tags:not-in-toc
| #+TOC:        headlines 2
| #+STARTUP:    align fold nodlcheck hidestars oddeven lognotestate hideblocks
| #+SEQ_TODO:   TODO(t) INPROGRESS(i) WAITING(w@) | DONE(d) CANCELED(c@)
| #+TAGS:       Write(w) Update(u) Fix(f) Check(c) noexport(n)
| #+TITLE:      Header arguments and result types in Org Babel
| #+AUTHOR:     Thorsten Jolitz, Eric Schulte
| #+EMAIL:      tj[at]data-driven[dot]de
| #+LANGUAGE:   en
| #+LINK_UP:    index.php
| #+LINK_HOME:  http://orgmode.org/worg/
| #+EXPORT_EXCLUDE_TAGS: noexport
| 
| For a complete header argument reference see the Org-mode manual's page
| which lists all
| [[http://orgmode.org/manual/Specific-header-arguments.html][Specific-header-arguments]].
| This page holds ancillary notes and tricks which have not made it into
| the manual.
| 
| * Generally use =verbatim= when using =drawer=, =raw= or =org=
| We often want to add =verbatim= (which inhibits interpretation as a
| value, which can often result in a list or table result), when
| inserting results directly into the buffer using =drawer=, =raw= or
| =org= which don't do tabular interpretation. [...]
`-----------------------------------------------------------------------------------------

exports the TOC twice in HTML export and ASCII export. 

HTML:
,--------------------------------------------------------------------------------
| Header arguments and result types in Org Babel
| 
| Table of Contents
| 
|   * Generally use verbatim when using drawer, raw or org
|   * Common combinations of header-args and result types
|   * Setting language and file specific default header argument values
| 
| Table of Contents
| 
|   * Generally use verbatim when using drawer, raw or org
|   * Common combinations of header-args and result types
|   * Setting language and file specific default header argument values
| 
| For a complete header argument reference see the Org-mode manual's page which
| lists all Specific-header-arguments. This page holds ancillary notes and tricks
| which have not made it into the manual.
`--------------------------------------------------------------------------------

ASCII:
,------------------------------------------------------------------------
| 
|             ________________________________________________
| 
|              HEADER ARGUMENTS AND RESULT TYPES IN ORG BABEL
| 
|                      Thorsten Jolitz, Eric Schulte
|             ________________________________________________
| 
| 
| Table of Contents
| _________________
| 
| Generally use `verbatim' when using `drawer', `raw' or `org'
| Common combinations of header-args and result types
| Setting language and file specific default header argument values
| 
| 
| Table of Contents
| _________________
| 
| Generally use `verbatim' when using `drawer', `raw' or `org'
| Common combinations of header-args and result types
| Setting language and file specific default header argument values
| For a complete header argument reference see the Org-mode manual's page
| which lists all [Specific-header-arguments]. This page holds ancillary
| notes and tricks which have not made it into the manual.
`------------------------------------------------------------------------


-- 
cheers,
Thorsten