Data Management Plans & Self-sub datasets show 'junk' for some list fields

[grantj-re3]

For ReDBox v1.8, when looking at the Details pane for a particular Data Management Plan (in the Researcher Dashboard), the People section shows the following for the Collaborators list when there are no collaborators.

 1. {missing: "person.foaf:givenName" } {missing: "person.foaf:familyName" }

This is despite the template at portal/dashboard/dashboard/display/package-dmpt/detail/preview/sections/people.vm saying:

    #set($personList = $self.getList("locrel:clb.foaf:Person"))
    #if ($personList.isEmpty())
    <dd>
    #noInformation()
    </dd>
    #else
      ...only attempt to show the list if we get here
    #end

Hence I suspect that the coding in people.vm is ok. The problem appears to be that data is stored for a person (ie. array element 1 is populated) [with blank fields] even though none of the collaborator fields were populated in the form. For example:

$ cat storage/1793582ab247f6442162a75562dcc548/6a/35/e5/6a35e5da4cd1500393a64d8b194ece5b/6f68a32b-b677-4cf1-9218-0d7020e68eaa.tfpackage |sed 's/","/",\n"/g' |grep locrel:clb.foaf:Person
"locrel:clb.foaf:Person.1.person.foaf:title":"",
"locrel:clb.foaf:Person.1.person.foaf:givenName":"",
"locrel:clb.foaf:Person.1.person.foaf:email":"",
"locrel:clb.foaf:Person.1.person.foaf:familyName":"",
"locrel:clb.foaf:Person.1.person.dc:identifier":"",

Similarly for self-submission, there is the same problem when there are no collaborators. For example:

$ cat storage/1793582ab247f6442162a75562dcc548/89/df/a9/89dfa9732c84002e6c0723395ae79746/6827f527-eb7e-4e47-ac70-125a9b8e914a.tfpackage |sed 's/","/",\n"/g' |grep dc:contributor.locrel:clb
"dc:contributor.locrel:clb.1.foaf:Agent.foaf:familyName":"",
"dc:contributor.locrel:clb.1.foaf:Agent.dc:identifier":"",
"dc:contributor.locrel:clb.1.foaf:Agent.foaf:title":"",
"dc:contributor.locrel:clb.1.foaf:Agent.foaf:givenName":"",
"dc:contributor.locrel:clb.1.foaf:Agent.foaf:email":"",

Similarly for self-submission, there is the same problem when there are no Geospatial locations (in the Coverage section). For example:

$ cat storage/1793582ab247f6442162a75562dcc548/89/df/a9/89dfa9732c84002e6c0723395ae79746/6827f527-eb7e-4e47-ac70-125a9b8e914a.tfpackage |sed 's/","/",\n"/g' |grep dc:coverage.vivo:GeographicLocation
"dc:coverage.vivo:GeographicLocation.1.dc:type":"text",
"dc:coverage.vivo:GeographicLocation.1.dc:identifier":"",
"dc:coverage.vivo:GeographicLocation.1.rdf:PlainLiteral":"",
"dc:coverage.vivo:GeographicLocation.1.redbox:Fid":"",
"dc:coverage.vivo:GeographicLocation.1.geo:long":"",
"dc:coverage.vivo:GeographicLocation.1.geo:lat":"",
"dc:coverage.vivo:GeographicLocation.1.redbox:wktRaw":"",

Question: Is there a way to ensure that the array is not populated when none of the collaborator (or geospatial) fields are populated? Alternatively is there some work-around?