With Revolver Beta 1 I made a torus. The "Round Float Coordinates to Integers" option was unchecked (it seems not to work). As a result, the torus was good but had many vertexes with non-integer coordinates.
After saving it in the .map format (from Hammer) the torus got unstuck. The sections forming it separated from each other. Now all the vertexes were in grid nodes (i. e. had integer coordinates).
The question is why the rounding of coordinates is made in such a weird way. Why mathcing (i. e. having equal coordinates) vertexes of different (adjacent in the initial torus) sections are snapped to differetnt grid nodes, so that the resulting figure collapses?
I think the coordinates of all the vertexes might be rounded in the same way so that the resulting body wouldn't fall to pieces but just be slightly deformed (due to rounding).
Anton Shepelev