Blender Git Loki

bugfix [#24324] Wrong center for scaling Bezier Curve's handles
slight change to how transform calculates the center of each bezier handle selection.
- selecting both handles but not the knot now uses the mid point between the 2, before it used the handle.
- selecting 1 handle of a curve was still setting td->center to be the knot, now use the handles location only if its selected.