I just took a look at this changeset:
Which made me briefly wonder, what kind of large scale editing did he do to cause such a large changeset bounding box?
It turns out, the reason was probably a locally restricted change in Tarott that affected the endpoint of a very long ferry route:
It's not a very severe problem, but still somewhat unfortunate because it can make detection of illegitimate or problematic edits significantly harder. Therefore I propose to split all long distance ferry routes into at least three parts, split at the borders of the territorial waters of the involved countries. This would result in rather short parts near the ports, and a long part through international waters, where it probably won't matter as much.
I'd like to hear some thoughts about this, especially from people who, as creators of long distance shipping routes, have a stake in this. Any obvious downsides that I haven't thought of?