Ah, cool. Yes, messing with large amount of relations is exactly why I haven't fixed these - it's really tedious.

In any case, what I mean then is that you shouldn't close the notes, but leave them open since the main "task" here was to split the road. The comments you added are fine though and thanks for adding the islands.

P.S. I should also mentioned (although it really doesn't matter), but traffic islands shouldn't be drawn separately unless the roads are also split. Because if the road is not split, the traffic island is tagged on the relevant highway section itself as `traffic_calming=island` and on the crossing as `crossing:island=yes`. But this now duplicates the data. And routing cannot understand the calming there that is not "connected" to the highway. Again, doesn't matter here, since these need to be split eventually. But just something to keep in mind since there are multiple "level" of micromapping these.