box selection always expect begin point coordinates to be lower the the end point coordinates

[alexiscastel]

Box selection always expect begin point coordinates to be lower than the end point coordinates (x1 < x2, y1 < y2 and z1 < z2).
It would be easy to make the form tolerant, currently it simply does not select anything.

[mbinelo]

I updated the program, could you confirm if the bug is fixed?