emptyHolesSurf1 and 2

[stefan]

When we collect the emptyHolesSurf1 and emptyHolesSurf2 from the API_WallQuantity structure, they seem to include the Doors/Windows as well.

Is an "empty opening" is actually still seen as a door or window?

E.g. Wall 10x3x1 meter
Empty Window 1x1 meter
Door 2x2 meter

windowsSurf = 0
doorsSurf = 4
emptyHolesSurf = 1
emptyHolesSurf1 = 5 (!)
emptyHolesSurf2 = 5 (!)
emptyHolesVolume = 5 (!)

This is simply what is received from the API.