I have to admit I got pretty confused by all the responses here and I’m still not sure I totally understand what’s at issue.
In the hopes of making it clearer (but at the risk of making it more confusing) I’ve made a silly chart and attached it as jpg image.
@michele_m Can you confirm that this diagram captures your issue? (I don’t want to misconstrue it).
My sense is that there may be no way to avoid the problem that @charlie describes (in the first response) while simultaneously avoiding the problem that @fogartyf describes later on.
