There seems to be counter productive "improvement" in CONNECT edition that Point Curve elements are converted to B-spline element on modify. For example using Fence Clip, break element or extend line tools. This is unexpected and the resulted spline is hard to modify afterwards as it also gets converted from trough point to control point type. Same applies to B-spline curves which also get converted fromtrough point to control point type on modify.
Defect 1059525: Point Curve changes to B-Spline with break or trim tool.