'Sliced OpenSCAD model has face inside the object

I have a cube from I cut out few places. Exported STL consist from a base with closed face and then it continues as if it was new object.

Am I somehow able to convince OpenSCAD to keep it as one object? Or is it even up to OpenSCAD?



Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source