gEDA-user: dead copper removal

[DJ Delorie]

> Use the ":MorphPolygon(Object)" command to "restore"
> the dead copper areas larger than PolyArea to the
> board. This command converts the disjoint copper areas
> into separate polygons. The "object" that the cursor
> must be over is the remaining (i.e. non-removed)
> portion of the polygon.

Does it convert them to independent polygon objects, or just tag it to
be not-split?  In this case, it would be better to leave it as a big
rectangle and do the clearance on the fly, so one could edit the board
and have the polygon follow it (like pre-clipper).