False role verification warnings for bicycle routes

[mdk]

According to the wiki, bicycle route members (route=bicycle and route=mtb) can have roles forward and backward (as all type=route relations):

Relation role: Cycle routes sometimes have different paths depending on the direction you are travelling. In this case, ways in the relation should have a role of forward or backward as described in Relation:route#Members.

But actual you get several warnings:

• Role forward unknown in template.
• Role backward unknown in template.
• Role member type relation does not match accepted list of way in template Bicycle Route.
• Role member type relation does not match accepted list of way in template Mountain Bike Route.

For examples, load relations 26827 (route=mtb) or relation 28202 (route=bicycle).

[Klumbumbus]

Closed as duplicate of #10988.