Fix Issue 87 via Alexis' patch: remove poly artifacts when switching mode in mid-creation of poly
Fix Issue 87 via Alexis' patch: remove poly artifacts when switching mode in mid-creation of poly

git-svn-id: e52e7dec99011c9686d89c3d3c01e7ff0d333eee@378 eee81c28-f429-11dd-99c0-75d572ba1ddd

BakerSky/svgedit,bartuspan/svgedit,progers/svgedit,centaurustech/svgedit,BakerSky/svgedit,mynext/svgedit,ubbn/svgedit,SVG-Edit/svgedit,centaurustech/svgedit,bartuspan/svgedit,centaurustech/svgedit,thewenneur/svgedit,ubbn/svgedit,beavis28/svgedit,laddhoffman/svgedit,beavis28/svgedit,thewenneur/svgedit,laddhoffman/svgedit,beavis28/svgedit,mynext/svgedit,mynext/svgedit,tremez/svgedit,uche40/svgedit,progers/svgedit,SVG-Edit/svgedit,ubbn/svgedit,BakerSky/svgedit,ubbn/svgedit,BakerSky/svgedit,progers/svgedit,mynext/svgedit,uche40/svgedit,thewenneur/svgedit,uche40/svgedit,laddhoffman/svgedit,uche40/svgedit,tremez/svgedit,laddhoffman/svgedit,centaurustech/svgedit,bartuspan/svgedit,beavis28/svgedit,progers/svgedit,tremez/svgedit,bartuspan/svgedit,tremez/svgedit,SVG-Edit/svgedit,thewenneur/svgedit