Updated makeShellFromUpToShape to accept the direction vector by reference.
This allows the method to reverse the direction internally if required
to successfully reach the target face, fixing cases where the extrusion
would otherwise fail or go the wrong way.
Note: While passing the direction as a non-const reference is a quick
fix for this regression, it is acknowledged as non-ideal and should
be considered for future refactoring.
52608d3081