Index: trunk/src_plugins/drc_query/drc_query.conf
===================================================================
--- trunk/src_plugins/drc_query/drc_query.conf	(revision 30419)
+++ trunk/src_plugins/drc_query/drc_query.conf	(revision 30420)
@@ -112,6 +112,13 @@
 						query = { pstkring(@, $min_ring) > 0 }
 					}
 
+					ha:fullpoly {
+						type = fullpoly
+						title = Multi-island polygon with the fullpoly flag
+						desc = Polygon with the fullpoly flag set is cut into multiple islands; there is no guarantee that the islands are connected while pcb-rnd will always think they are, fooling the drc and rats optimizer.
+						query = { poly_num_islands(@) > 1 }
+					}
+
 				}
 			}
 		}