deep copy of resources 409s due to non-unique listings

[ghchinoy]

Note how marketo, here, has been added but cectl for some reason tries to add marketo again

$ cectl resources copy common-contact uncommon-contact --deep
A copy of common-contact has been created, named uncommon-contact
2018/02/04 13:07:03 Associated Transformation for Resource uncommon-contact with Element sfdc
2018/02/04 13:07:03 Associated Transformation for Resource uncommon-contact with Element eloqua
2018/02/04 13:07:04 Associated Transformation for Resource uncommon-contact with Element shopify
2018/02/04 13:07:05 Associated Transformation for Resource uncommon-contact with Element marketo
2018/02/04 13:07:06 Associated Transformation for Resource uncommon-contact with Element closeio
2018/02/04 13:07:07 Associated Transformation for Resource uncommon-contact with Element dynamicscrmadfs
2018/02/04 13:07:08 Associated Transformation for Resource uncommon-contact with Element concur
Unable to copy transformations HTTP Status Code associating Element marketo with new Transformation: 409