Avoid using revolve for now
When we moved to concurrent execution of KCL modules, we begun to see an
error we never fully understood, and because it was pretty hard to
trigger, we wound up never being able to fix it. Today we were able to
track it down to the `revolve` call here.
Specifically, the problem is triggered when we're doing a "Full Revolve"
(e.g., `angle = 359.999999` passes, but *not* `angle = 360` or the
default, as it is in `main`), and concurrently executing modules will
see something weird happen with `getNextAdjacentEdge`.
From all the smoke I believe this happens only when we are doing a *full
revolve*, *AND* we're executing other modules which are calling
`getNextAdjacentEdge`.
When the `revolve` is present, we can lose the race in *either*
`talk-button.kcl` OR `case.kcl`.
If I move back to single-threaded execution OR I add imports to sequence
things carefully, I can get the tests to pass. If the revolve is an
`extrude` or not a full revolve, it works fine.
My best guess is that it seems like the world got flipped upside down or
something, such that "next edge" has a different orentation for two
calls. My even further guess is that inside `revolve` we mutate
something connection-global such that it alters the intepretation of
calls made during the revolve implementation's "critical section".
