i noticed a bug when enabling Filled Renderings in settings,
you see when objects overlap and which areas get filled and which not.
but it isnt the same as the cut preview
The bug is that shapes that are not fully inside a shape just get ignored and also filled instead of inverting the overlap
so theres either a bug that wont exlude those areas from being marked or a bug that marks those areas twice.
with Filled Rendering turned off its just two circles
With it turned on and the smaller circle not fully inside the other circle it excludes the overlap from being marked as it should.
but preview says its getting marked twice in the same area. doesnt line up with the rendering
but if the circle is fully inside bigger circle
preview is also correct it exludes the area from being marked as it should
this also explains the bug reports named “overlaps first and last cuts makes a deeper cut line” and “fill seems to be over cutting lines in between shapes” as it runs over that area twice