Hi Samuel,
this changeset has created errors in the OSM database regarding overlapping ways:

https://tools.geofabrik.de/osmi/?view=routing&lon=36.78423&lat=-1.26980&zoom=13&baselayer=Geofabrik%20Standard&overlays=duplicated_edges%2Cduplicated_edges%2Cduplicated_edges_areas%2Cunconnected_open_ends_1

https://overpass-api.de/achavi/?changeset=133560969

As you may know this kind of error irritates routing software and looks ugly on the maps. Can you please fix this?

As the OSMI view above clearly shows there are currently a lot of other overlapping ways which a caused by recent bus route edit activities. Can you please contact your colleges and encourage a joint effort to fix those issues? May be you can also initiate a discussion about how to avoid such errors at all? As you are all using JOSM this should not be very difficult.
Kind regards
Guido