Fix edge case that allowed in-transit journeys with invalid destinations

				delete $journey->{edited};

				delete $journey->{id};

				# users may force checkouts at stations that are not part of

				# the train's scheduled (or real-time) route. re-adding those

				# to in-transit violates the assumption that each train has

				# a valid destination. Remove the target in this case.

				my $route = JSON->new->decode( $journey->{route} );

				my $found_checkout_id;

				for my $stop ( @{$route} ) {

					if ( $stop->[1] == $journey->{checkout_station_id} ) {

						$found_checkout_id = 1;

						last;

					}

				}

				if ( not $found_checkout_id ) {

					$journey->{checkout_station_id} = undef;

					$journey->{checkout_time}       = undef;

					$journey->{arr_platform}        = undef;

					$journey->{sched_arrival}       = undef;

					$journey->{real_arrival}        = undef;

				}

				$self->in_transit->add_from_journey(

					db      => $db,

					journey => $journey