This allows to force duplicated object to be fully evaluated for
display/draw.
Previously only transform component of duplicated object was
forced to become evaluated.
Currently done for mesh batch cache update, and for base flags sync.
Those components do not need anything from original object, and hence
can skip CoW tag and have faster update after them used.
- When returning the number of items in a collection use BLI_*_len()
- Keep _size() for size in bytes.
- Keep _count() for data structures that don't store length
(hint this isn't a simple getter).
See P611 to apply instead of manually resolving conflicts.
This code was disable a while back and got re-enabled by some previous debug
process. Having relation names in dot file helps understanding what's going
on in one cases, but makes things spread too far away in others.
One thing i'm not fully happy with is all this is_same_* functions. Need to
get rid of this by probably adding explicit entry/init/whatever nodes and
maybe making node criteria aware of whether key will be used as "from" or
as "to" node.
