Adjusts behavior for trimming Bezier curves, specifically the outer Bezier handles for the endpoints which do not influence the actual curve. Handles are only adjusted if they lie within the same segment with at most one endpoint being a control point (unless they are the same in which handles are set to the point itself). The result yields a curve in which the trim result can be inverted by re-setting the cyclic property for the curve using 'Set Spline Cyclic' node (iff both trim endpoints lie within a segment). Differential Revision: https://developer.blender.org/D16488