7047715c6b
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