Individual listeners + osc for ofParameterGroup

i’d like to send individual parameters from an ofParameterGroup out through OSC. it looks like this can be done with ofxOscParameterSync or manually through the listener, but it appears that the ofParameterGroup event notifier parameterChangedE is never called (via ofParameterGroup::notifyParameterChanged(ofAbstractParameter & param). at least one other forum post about this, and one issue filed.

alternatively, is there any other way to associate individual parameters from ofParameterGroup with their own listeners or unique behaviors? i thought to extend the ofParameter class and add the behavior right into it, but this seems overkill.

is there some solution to this i’ve missed or is this an outstanding issue? i am trying to sort out where it’s going wrong…