schedule quantity doubled after a morph with "unions” of two sub-morphs

[Anonymous]

Hello,
I made a door by morph with a panel and a frame, then I copt this frame to the other side then "unions" these panel plus 2 frames, then the quantity ought to be "one" element in the schedule, but the quantity in the schedule shows "2".

If I draw the door from the begining (a box "substracted" with two recessed morph) to make a framed door, then the quantity is correct to be "one".

Could be a small bug?

Regards