[Texmacs-dev] bug with empty preamble

[Gubinelli Massimiliano]

Joris,
 looking further to the reasons for the crashes experimented by Hu and 
Liddicott, I found that TeXmacs crashes when there is an empty preamble and an 
empty document. For example the following document crashes on loading
--------------

<TeXmacs|1.0.7.6>

<style|generic>

<\body>
  <\hide-preamble>
  </hide-preamble>
</body>


------------------

And you can crash TeXmacs by creating a document, creating a preamble, leaving 
it empty (or not), returning to the empty document and then pressing backspace.

This goes back as far as r3000 in svn. Note that until r3099 the crash reported 
by Liddicott  (with his particular file) does not happen. 

Probably the two problems are related.

Best
Massimiliano