Harness status: OK

Found 4 tests

4 Pass
Pass	Removing the accepted node during its own filtering retargets the reference and returns the filtered node
Pass	Removing an already-visited subtree during filtering does not disrupt forward traversal
Pass	referenceNode during filtering reflects the last accepted node, not the candidate
Pass	Removing an ancestor of the in-flight position during filtering, pointer before it, with no following node within root