Hi aceman 444, 
I have made the edit in order to address the issue of connecting approaching and departing segments at the same node as documented in: https://wiki.openstreetmap.org/wiki/Tag:junction%3Droundabout#Connecting_ways
Changeset reverted based on your feedback. I will go on to fix the k-model issue, manage the turn restriction without splitting the roundabout (roundabout as via member, in compliance with https://wiki.openstreetmap.org/wiki/Relation:restriction#Members), thus, not disturbing any existing route relations. Please let me know if this will be alright.