corrected the end() and the initial position of an iterator; now it is also correct for a selection-box, or when the end() is called when the iterator is not at its start
corrected the end() and the initial position of an iterator; now it is also correct for a selection-box, or when the end() is called when the iterator is not at its start

ridoo/IlwisCore,ridoo/IlwisCore,ridoo/IlwisCore,ridoo/IlwisCore,ridoo/IlwisCore