Issue #2024 - Redesign of circle and arc of circle: fill Reference Attribute
1. Do not call execute(), this is obsolete functionality done for Rectangle feature(as lines were created in execute(), now one is created in attribute changed). It is checked without execute that coincidence is set to rectangle's features to line/point selected.
2. shapeContains/shapeExploreHasVertex should not be called by preselection if feature contains reference attribute(coincidence will not be created by selection)
