In future files from 4.2, `object_to_world` is moved to a runtime struct
and therefore isn't saved in files. It was always considered runtime information
though, since it's built by depsgraph evaluation and copied back to the original
object. Therefore to have the proper data in `object_to_world` we need to
evaluate the depsgraph.
This partially solves #118694, but there is still an issue with the snap cursor
system never running before using the `plane_omat` value.
Hans Goudey
d196046a3a