[Gmsh] Extrude command and element numbering

[Kuldeep Amarnath]

Hi
   The syntax for the 'Extrude' supposedly allows for user numbering of the 
elements created. Eg. (from tutorial 't3.geo':

Extrude Surface { 6, {0,0,h} } {
  Layers { {8,4,2,1}, {9000:9003}, {0.25,0.5,0.75,1} } ;
} ;

The above command should number the four new volume elements from 9000 to 
9003. However in practice this does not seem to happen! The new elements are 
numbered arbitrarily by Gmsh irrespective of what I specify. Is this a bug? 
or am I doing something wrong?

thanks in advance
kuldeep

ps: I did go through the archives and found one article (in 2001) related to 
this question, but that article does not say anything about the behavior of 
the 'Extrude' command with the user specified element numbers.

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