Fix #7391, 9b99b95: Don't invalidate go to depot orders of non-aircraft when invalidating hangar orders that happen to share IDs.

This was caused because hangars are referred to by station ID, which is not unique with respect to depot IDs.

src/order_backup.cpp

@@ -263,6 +263,7 @@ CommandCost CmdClearOrderBackup(TileIndex tile, DoCommandFlag flags, uint32 p1,
 		for (Order *order = ob->orders; order != NULL; order = order->next) {
 			OrderType ot = order->GetType();
 			if (ot == OT_GOTO_DEPOT && (order->GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0) continue;
+			if (ot == OT_GOTO_DEPOT && hangar && !IsHangarTile(ob->tile)) continue; // Not an aircraft? Can't have a hangar order.
 			if (ot == OT_IMPLICIT || (IsHangarTile(ob->tile) && ot == OT_GOTO_DEPOT && !hangar)) ot = OT_GOTO_STATION;
 			if (ot == type && order->GetDestination() == destination) {
 				/* Remove the order backup! If a station/depot gets removed, we can't/shouldn't restore those broken orders. */

src/order_cmd.cpp

@@ -1851,7 +1851,7 @@ void RemoveOrderFromAllVehicles(OrderType type, DestinationID destination, bool
 
 		order = &v->current_order;
 		if ((v->type == VEH_AIRCRAFT && order->IsType(OT_GOTO_DEPOT) && !hangar ? OT_GOTO_STATION : order->GetType()) == type &&
-				v->current_order.GetDestination() == destination) {
+				(!hangar || v->type == VEH_AIRCRAFT) && v->current_order.GetDestination() == destination) {
 			order->MakeDummy();
 			SetWindowDirty(WC_VEHICLE_VIEW, v->index);
 		}
@@ -1864,6 +1864,7 @@ restart:
 
 			OrderType ot = order->GetType();
 			if (ot == OT_GOTO_DEPOT && (order->GetDepotActionType() & ODATFB_NEAREST_DEPOT) != 0) continue;
+			if (ot == OT_GOTO_DEPOT && hangar && v->type != VEH_AIRCRAFT) continue; // Not an aircraft? Can't have a hangar order.
 			if (ot == OT_IMPLICIT || (v->type == VEH_AIRCRAFT && ot == OT_GOTO_DEPOT && !hangar)) ot = OT_GOTO_STATION;
 			if (ot == type && order->GetDestination() == destination) {
 				/* We want to clear implicit orders, but we don't want to make them