angular ngmodel - angularjs ng-model in select -


im stucked in dumb problem, don't know how go ahead, hope of can give me help. problem have list of element, , can acces of them, in can load specific data of element. in view can load data rest backend call, , work prettly, problem have encountered when have load list select tag, , im working ng-model , ng option. want load in list data selected element have in moment, when try put in ng-model data give backend, doesnt work, instead if initialize same element out of service call backend work , can see element selected. service working because can see every value of element, , if try take specific value can see if example put in paragraph. in advance.

this load list:

  self.azionepropostalista=[        {  qsazioneproposta:'sensibilizzazione', value: 'sensibilizzazione'},        {  qsazioneproposta:'inibizione manual entry', value: 'inibizione manual entry'},        {  qsazioneproposta:'inibizione banda', value : 'inibizione banda'},        {  qsazioneproposta:'inibizione completa', value : 'inibizione completa'},        {  qsazioneproposta:'revoca', value : 'revoca'},        {  qsazioneproposta:'rinuncia', value :'rinuncia'},        {  qsazioneproposta:'sblocco', value :'sblocco'},        {  qsazioneproposta:'comunicazione interna', value :'comunicazione interna'},        {  qsazioneproposta:'autofin.sospettato', value : 'autofin.sospettato'},        {  qsazioneproposta:'valutato senza rischio', value :'valutato senza rischio'}      ];

this data im retriving backend service:

self.condition: "sensibilizzazione" 

  merchantservice.getthisaction({qs_key:$routeparams.qs_key,qs_data_proposta:formatdata},function(response){          if(response.statuscode==0){            self.action = response.data;             self.condition = response.data.qsazioneproposta; doesn't work can see value            $log.debug("self.condition is"+self.condition);                      }          else {            sweetalert('error','something missing or trying acces inexistent merchant', 'error');            $location.path("/home");          }        });          // self.condition = 'sensibilizzazione' work
  <div class="input-field col s4">     <select ng-model="$ctrl.condition"  ng-options="azione.value azione.qsazioneproposta azione in $ctrl.azionepropostalista"></select>  <label>suggested action</label>  </div>

this data i'm retriving backend


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