Reuse nodes in primitives about transforge

[slakkenhuis]

In fact, some queries using the CCT algebra contain non-primitive operations. That fails immediately, because using non-primitive operations is disallowed now (the graphs, by design, only include primitives).

To solve this, I could (optionally) include both a path for primitives and a path for non-primitives in the graph. That would likely explode the graphs even further. but it's an obvious solution. The issue under discussion would be addressed in the process.

(I could also think of a way to convert a mention of a non-primitive into mentions of primitives, but that is likely complicated.)