Guard code from 9b99115b3 needs to be in undo_redo.js too
Guard code from 9b99115b3 needs to be in undo_redo.js too

mapmeld/iD,AndreasHae/iD,digidem/iD,mapmeld/iD,bagage/iD,morray/iD,kartta-labs/iD,mapmeld/iD,kartta-labs/iD,bagage/iD,ngageoint/hootenanny-ui,openstreetmap/iD,AndreasHae/iD,kartta-labs/iD,morray/iD,digidem/iD,bagage/iD,openstreetmap/iD,AndreasHae/iD,ngageoint/hootenanny-ui,ngageoint/hootenanny-ui,openstreetmap/iD