CQ-Editor gets stuck and consumes all memory

Similar to CadQuery/cadquery#502 cq-editor gets stuck trying to render an extrusion of two overlapping circles. In a matter of seconds tens of gigabytes of memory are consumed and the process is killed.
```
import cadquery as cq

result = (
cq.Workplane()
.pushPoints([(0, 0), (-50, 0)])
.circle(30)
.extrude(4)
)
```

This runs fine without cq-editor, so I suppose the issue is on the side of rendering. Also it seems to be related to circles as overlapping rectangles appear to work just fine. `circle(25)` but the output is a bit wonky.

Reproduces with OCP 7.5.3.0 and 7.6.3.alpha.

Start by running the supplied overlapping-circle extrusion in CQ-Editor and compare it with the standalone CadQuery run. Trace the CQ-Editor rendering path for this shape and verify that overlapping circles render without runaway memory use or the process being killed.

Written by the indexing model from the issue text.