function cumsum aborts octave

Dimension equal to the number 3 gets Octave into a trouble, see example:
--------
GNU Octave, version 2.1.55 (i686-suse-linux).
Copyright (C) 2004 John W. Eaton.
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octave:1> v=1:5
v =

  1  2  3  4  5

octave:2>
octave:2> cumsum(v,3)
octave: dim-vector.h:104: int& dim_vector::dim_vector_rep::elem(int): 
Assertion `i >= 0 && i < ndims' failed.
panic: Aborted -- stopping myself...
attempting to save variables to `octave-core'...
save to `octave-core' complete
Ne?úsp?ě?šn?ě ukon?čen (SIGABRT)
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Jiri Polacek, SVI ESF MU Brno



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