ofNode::orbit with just long, lat, radius should be relative to parent node

Currently, the signatures:
(1) ofNode::orbit(longitude, latitude, radius, ofNode& centerNode)
and
(2) ofNode::orbit(longitude, latitude, radius, const ofVec3f& centerPoint = ofVec3f(0, 0, 0))
result in
ofNode::orbit(longitude, latitude, radius, ofVec3f(0, 0, 0))
being resolved for a call like in:

mNode = ofNode();
mNode1 = ofNode();
mNode1.setParent(mNode);
mNode.truck(100);
float angle = 90 + ofGetFrameNum() % 360;
mNode1.orbit(angle, 0, 100);

This seems counter-intuitive, as you may assume a parented node to orbit around its parent. In the above case, the parented node mNode1 will rotate around the centre of the universe, world (0,0,0) instead of its parent's centre, (100,0,0). This because the default argument in signature (2) will be used.

Locate the ofNode::orbit overloads and read how the three-argument call is resolved when a node has a parent. Reproduce the example with mNode1 parented to mNode, then verify that orbiting with only longitude, latitude, and radius uses the parent node's center rather than world (0,0,0).