Thanks for your reply. 
Yes, I did correct the duped cycleways (cf 
https://www.openstreetmap.org/changeset/153732084 and https://www.openstreetmap.org/changeset/153532971).
By the way, this issue is a generic one and I believe mappers in other areas will also be thankful if you check the existence of separated cycleways before tagging roads with StreetComplete ;-) Mapping cycleways and sidewalks with SC is quite tricky, because they may be mapped separately... 
Happy mapping!
