facet filter for multi array field

gistfile1.txt

authordetailsarray.authornamearray.notanalyzed is a not Analyzed field, has values as ["aaaa","bbbb"]


my search and facet filter is...

{
  "from" : 0,
  "size" : 10, 
  "query" : {"bool":{"must":{"bool":{"should":[{"query_string":{"query":"aaaa","fields":["content"],"use_dis_max":true}}}}}},
 "facets" : { 
"count" : {
      "terms" : {
        "field" : "authordetailsarray.authornamearray.notanalyzed",
        "size" : 2000
      },
"facet_filter" : {
{
  "and" : {
        "filters" : [ {
           "term" : {
              "authordetailsarray.authornamearray.notanalyzed" : "xxxx"
            }
         } ]
        }
}
}
}
}
}


when I apply the facet, I am getting the facet result as...

aaaa  -  1
bbbb  -  1

for my case I need only

aaaa  -  1