Avoid re-copying the scene when the scene is tagged for frame change.
For scenes with many objects scrubbing & jumping between first/last
caused noticeably worse performances.
Resolve by:
- Returning false from need_tag_cow_before_update when the recalc flag
is ID_RECALC_FRAME_CHANGE.
- Change deg_graph_tag_parameters_if_needed to consider
ID_RECALC_FRAME_CHANGE a clean flag.
Ref !104801
7047715c6b