Auto-resolve monophyletic conflicting node mapping
Auto-resolve monophyletic conflicting node mapping

This works but should be faster. It seems we gather conflicting node
mappings repeatedly, so we probably need a per-tree cache that is
cleared when re-rooting, etc.

OpenTreeOfLife/opentree,OpenTreeOfLife/opentree,OpenTreeOfLife/opentree,OpenTreeOfLife/opentree,OpenTreeOfLife/opentree,OpenTreeOfLife/opentree