A v3 call to ListResources with a slice URN might legitimately return an Ad RSpec if the AM ignored the slice_urn option, so allow that error to be raised
A v3 call to ListResources with a slice URN might legitimately return an Ad RSpec if the AM ignored the slice_urn option, so allow that error to be raised

plantigrade/geni-tools,tcmitchell/geni-tools,tcmitchell/geni-tools,ahelsing/geni-tools,ahelsing/geni-tools,plantigrade/geni-tools