(svn r18700) -Fix: when deleting an industry on water (oil rigs) the tiles on water were not marked dirty

src/industry_cmd.cpp

@@ -153,6 +153,8 @@ Industry::~Industry()
 				/* MakeWaterKeepingClass() doesn't remove animation if the tiles
 				 * become watery, but be on the safe side an always remote it. */
 				DeleteAnimatedTile(tile_cur);
+
+				MarkTileDirtyByTile(tile);
 			}
 		} else if (IsTileType(tile_cur, MP_STATION) && IsOilRig(tile_cur)) {
 			DeleteOilRig(tile_cur);