jakesmith/HPCC-Platform — comment on commit 8498c4f1c7e433e864a7b61a556853d195a5f567
File: esp/services/ws_topology/ws_topologyService.cpp line 113
By jakesmith:

NB: This would have worked before.
It's not clear how this should be implemented, possibly it should call out to swaponenode script, since it needs to do the steps contained therein, i.e. including pushing out new environment to cluster.