Blender Git Loki

Fix #25315: Curve points keyframe changes made in edit mode get lost

ED_curve_updateAnimPaths now updates fcurves from animation data rather than
from local copy of curves: nurb and point index from keyIndex data gets
updated in this function and for correct handling undo stuff copy of
fcurves is stored in UndoCurve.

Additional changes:
- Revert of rev33640 and more proper fix: do not copy remained
spline-related rna fcurves after renaming pathes but all the rest
fcurves woulddbe copied back to animation data
- Refresh graph and dopesheet editor after updating animation data