It looks like a bunch of the assertions authored in SERVER-73488 "Add redaction to projection AST serialization" are not passing on this branch because the fields are coming back in a different order.

At first I thought it was due to SERVER-67416 Always sort fieldpath string sets using custom comparator, but that was also backported to the v6.0 branch, so shouldn't be a difference?

My last suspect is SERVER-70353 Implement fast path projection node to support exclusion, but this is untested.