Lazy-Union causes internal ridges

[Jab2870]

Hi, thanks so much for creating this!

However, I was wondering what the purpose of the internal ridges was?

I can't seem to work out what is causing them, although if they are necessary, do you think it would be possible to add a slope to the bottom of so they don't need support?

EDIT:

Just to add, in case it wasn't clear, the screenshot is of a gridfinity rugged box, and the ridges shown are on the handle side, however there are similar ridges on the hinge end as well:

EDIT 2:

Wanted to add that the same appears to happen on a rugged box (non-gridfinity-version).

The above change appear to remove / fix the latches, although I am not familier enough with openscad / this project to see if that breaks things elsewhere.

[Jab2870]

Ok, so I got to the bottom of this. It looks like it was caused by the lazy-union option in development builds of openscad:

Turning this off prevented the internal ridges. I've renamed the issue to reflect the cause.