Laszlo Papp [off-list ref] writes:
Is there any benefit about having it like it is today or is it just
the usual "no one has implemented it yet"?
It actually is even more sketchy than that. A single file following
was done merely as a checkbox item that works majority of the time,
and any mergy history that renames the file on one side of the side
branch but not on the other may not truly follow it.