Hi cehceh, sorry for the delay.

I reverted back my changes using http://revert.osmz.ru/ (see osm.org/changeset/107900303).

I did not update the viaferrata trace (this is the old trace). Hopefuly someone will do it.

I did not check all relations before upload (MTB slopes and bus from Thonon). Please cancel this edit if there is any mistake!