Traveling#station: GET parameters always override user configuration

		$timestamp = DateTime->now( time_zone => 'Europe/Berlin' );

	}

	my $dbris_service = $self->param('dbris')

	  // ( $user->{backend_dbris} ? $user->{backend_name} : undef );

	my $efa_service = $self->param('efa')

	  // ( $user->{backend_efa} ? $user->{backend_name} : undef );

	my $hafas_service = $self->param('hafas')

	  // ( $user->{backend_hafas} ? $user->{backend_name} : undef );

	my $motis_service = $self->param('motis')

	  // ( $user->{backend_motis} ? $user->{backend_name} : undef );

	my ( $dbris_service, $efa_service, $hafas_service, $motis_service );

	if ( $self->param('dbris') ) {

		$dbris_service = $self->param('dbris');

	}

	elsif ( $self->param('efa') ) {

		$efa_service = $self->param('efa');

	}

	elsif ( $self->param('hafas') ) {

		$hafas_service = $self->param('hafas');

	}

	elsif ( $self->param('motis') ) {

		$motis_service = $self->param('motis');

	}

	else {

		if ( $user->{backend_dbris} ) {

			$dbris_service = $user->{backend_name};

		}

		elsif ( $user->{backend_efa} ) {

			$efa_service = $user->{backend_name};

		}

		elsif ( $user->{backend_hafas} ) {

			$hafas_service = $user->{backend_name};

		}

		elsif ( $user->{backend_motis} ) {

			$motis_service = $user->{backend_name};

		}

	}

	my $promise;

	if ($dbris_service) {

		if ( $station !~ m{ [@] L = \d+ }x ) {