Size of change files with geometries on ways

[joto]

When we put the locations of all points in a way on that way (chapter 4.1 in the study), changes in those points will generate new way versions. Instead of a small node change a possibly large way with lots of points and lots of tags will end up in the change file. This is something we want, but it could lead to a lot of extra data being shipped around.

This is probably not a huge problem, because most ways are small and if there are several points changing in a way only one new way version will usually be generated. But we should estimate how much more data this would be and whether there could be a problem.

(This issues was raised by someone in the BoF discussion at SotM 2022.)