route description for ferry includes mangled name

[emiltin]

http://localhost:5000/viaroute&start=55.679121891042,12.594452988286&dest=55.68155662141,12.599254142426&z=17&output=json&jsonp=showResultsRoute&geomformat=cmp&instructions=true

Head on for 2 m
2. Continue on 901;902;903 for 416 m <------- notice the way name
3. Continue on for 5 m
4. You have reached your destination

[DennisOSRM]

This is caused by the ref tag of the ferry. Ref's have precedence over names. See also here:

http://www.openstreetmap.org/browse/way/57780914

[emiltin]

ok i see. i now realize that 902;903;904 is in fact bus route numbers.
why does ref take precedence over name?

[DennisOSRM]

For example a road that goes through two cities has different names in each city and no name in between but always the same ref. So it makes sense to adress it in turn instruction by its ref and not by the changing name.