So, I improved the mapping of the UdM campus (or so I dare to think). Mostly this involved adding/fixing building outlines and adding a few surrounding features as well as pedestrian paths/tunnels. Also adjusted the position of Côte-des-Neiges station, which was position too much to the north. I'm worried about the reduced accessibility caused by the combination of several areas being attached to a single way. If the entire length of a way later becomes part of the edge of something, can the way sill be edited? What it there are several embedded areas involved?

In related concerns, neither renderer seems to be able to deal with the possibility of some features bordering each others, such as cemeteries. Is it a current bug or a feature that some areas are drawn without bordering edges?

On the other end, I found out about the "data" layer, which is awesome to get a rough idea of what you've done.