bug in 3.0.0 Gnu Octave

[Petr Mikulik]

Please use
	set clip two
to set the desired clipping.

> | I think the bug is in gnuplot: when a line segment has no end point
> | in the current axis limits, gnuplot seems to drop it.
> 
> Right, you can duplicate that problem with something as simple as
> 
>   line ();
>   axis ([0.25, 0.75, -2, 2]);
> 
> in Octave, or
> 
>   set xrange [0.25:0.5]
>   set yrange [-2:2]
>   plot '-' with lines
>   0, 0
>   1, 1
>   e
> 
> directly in gnuplot