matsnf segfaults

[Alexander Shumakovitch <shurik@math.unibas.ch>]

Hi all!

I've just got bitten by a nasty bug in matsnf. If one tries to apply it
to the matrix attached, one gets:
  (15:02) gp > m = read("crash_snf");
  time = 10 ms.
  (15:02) gp > matsnf(m)
    ***   bug in GP (Segmentation Fault), please report
  (15:03) gp > 

This happens on 2.4.1, 2.2.5 and CVS versions.

Thanks,

   --- Alexander.

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