subsasgn works destructive on shared data

[Christoph Albers]

On Saturday 20 June 2009, Jaroslav Hajek wrote:
> I fixed this in development sources.
> http://hg.savannah.gnu.org/hgweb/octave/rev/ff612fdaee95

Thank you for the quick reply, but with the patch subsasgn does not work at 
all:

s = struct( "a", 1 );

function bug(x)
    subsasgn( x, substruct(".","a"), 3 );
    x.a
end

bug(s);

output
------

ans =  1

Cheers,
Christoph

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