linked
Shapekey actions weren't getting copied when their owner data was.
This was due to the IMO totally convoluted way in which the duplicate
action flags have been set up:
- the function to copy animdata takes a param to specify whether
actions are copied or not, but this is never touched (i.e. this always
just gets FALSE passed in)
- instead, we jump around in hoops later figuring out whether the
userpref wants copying to occur, then fixing up the links
IIRC, part of this may be due to a desire/need to not duplicate
actions when dealing with NodeTree copies for multi-threaded
rendering, but at the expense of complicating everything else.
a67562e73c