Polygon legend problem

[zanollim]

If I define my polygon layer as LINE as follows:

[...]
TYPE LINE
STYLE
  WIDTH 4
  LINECAP round
  OUTLINECOLOR 0 0 0
  PATTERN 0.1 6 END
END
[...]

the legend icon obtained through cgi is correct (see line_legend.png)

If I define the same layer as POLYGON as follows:

[...]
TYPE POLYGON
STYLE
  COLOR 255 255 255
END
STYLE
  WIDTH 4
  LINECAP round
  OUTLINECOLOR 0 0 0
  PATTERN 0.1 6 END
END
[...]

the legend icon is wrong, e.g. points are cut in the middle (see polygon_legend.png)