Rectangle feature: coincidence debug: 1. lines should not be updated in execute becau...

Rectangle feature: coincidence debug: 1. lines should not be updated in execute because it is performed in attributeChanges [wrong case: create rectangle with coincidence to axis, solver move lines, but execute returns them back to rectangle's points]. 2. we need to flush created for coincidence[wrong case: after the first modification only one line is moved to axis, others are not moved]