< drawing a rectangle, select it, do Transform/Rotate, picked the origin as the center point,
Yes I make the same

then typed 45 "On the numeric keyboard of the computer" and push enter
= you arrive in the menu of the Extrusion!!!
So you don't see any rotation but an extrusion in Wip :)
And it's reproductable at any rotation!

This don't arrive when I use your little numeric inside calculator :)
Maybe all keys of my numeric keyboard is like a shortcut to Extrusion?