Make Directory.SuggestEntries return parent with obsolete children if the parameter canSelectParent is set to true

Steps to reproduce :

1. define a hierarchical vocabulary with this content

   "id","label","parent","obsolete"
   "veg","Végétale","","0"
   "palm","Huile de palme","veg","1"
   "ani","Animale","","0"
   "porc","Porc","ani","0"
   "boeuf","Boeuf","ani","0"
   "autre","Autre","",0
   

2. run this query

   curl -u Administrator:Administrator 'http://localhost:8080/nuxeo/api/v1/automation/Directory.SuggestEntries'   -H 'Accept: application/json' -H 'Content-type: application/json'  -H 'X-NXRepository: default'   -H 'properties: *'  --data-raw '{"params":{"directoryName":"myvoc","dbl10n":false,"localize":true,"lang":"fr","searchTerm":"","canSelectParent":true},"context":{}}'
   

3. observe that the parent "veg" is not returned because its only children "palm" is obsolete

   [
      {
         "absoluteLabel" : "Animale",
         "children" : [
            {
               "absoluteLabel" : "Animale/Boeuf",
               "computedId" : "ani/boeuf",
               "directoryName" : "myvoc",
               "displayLabel" : "Boeuf",
               "entity-type" : "directoryEntry",
               "id" : "boeuf",
               "label" : "Boeuf",
               "obsolete" : 0,
               "ordering" : 10000000,
               "parent" : "ani",
               "properties" : {
                  "id" : "boeuf",
                  "label" : "Boeuf",
                  "obsolete" : 0,
                  "ordering" : 10000000,
                  "parent" : "ani"
               }
            },
            {
               "absoluteLabel" : "Animale/Porc",
               "computedId" : "ani/porc",
               "directoryName" : "myvoc",
               "displayLabel" : "Porc",
               "entity-type" : "directoryEntry",
               "id" : "porc",
               "label" : "Porc",
               "obsolete" : 0,
               "ordering" : 10000000,
               "parent" : "ani",
               "properties" : {
                  "id" : "porc",
                  "label" : "Porc",
                  "obsolete" : 0,
                  "ordering" : 10000000,
                  "parent" : "ani"
               }
            }
         ],
         "computedId" : "ani",
         "directoryName" : "myvoc",
         "displayLabel" : "Animale",
         "entity-type" : "directoryEntry",
         "id" : "ani",
         "label" : "Animale",
         "obsolete" : 0,
         "ordering" : 10000000,
         "parent" : "",
         "properties" : {
            "id" : "ani",
            "label" : "Animale",
            "obsolete" : 0,
            "ordering" : 10000000,
            "parent" : ""
         }
      },
      {
         "absoluteLabel" : "Autre",
         "computedId" : "autre",
         "directoryName" : "myvoc",
         "displayLabel" : "Autre",
         "entity-type" : "directoryEntry",
         "id" : "autre",
         "label" : "Autre",
         "obsolete" : 0,
         "ordering" : 10000000,
         "properties" : {
            "id" : "autre",
            "label" : "Autre",
            "obsolete" : 0,
            "ordering" : 10000000
         }
      }
   ]
   

    

It makes sense not to return a parent with all obsolete children when the parent cannot be selected. But if one can choose a parent, it should be return in this case.