(svn r25429) -Fix [FS#5603] (r25140): When town creation failed, removing remnants of the construction failed on protected houses.

src/newgrf_house.cpp

@@ -535,9 +535,9 @@ bool CanDeleteHouse(TileIndex tile)
 {
 	const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
 
-	/* Humans are always allowed to remove buildings, as is water and
+	/* Humans are always allowed to remove buildings, as is water and disasters and
 	 * anyone using the scenario editor. */
-	if (Company::IsValidHumanID(_current_company) || _current_company == OWNER_WATER || _current_company == OWNER_NONE) {
+	if (Company::IsValidHumanID(_current_company) || _current_company == OWNER_WATER || _current_company == OWNER_NONE || _game_mode == GM_EDITOR || _generating_world) {
 		return true;
 	}