Modal Window drop down value not updated as per modal value

While editing a drop down in modal window, the drop-down lists for field is not getting updated with model values even though values are seemingly set and served.

I am using angular 1.6.4 and ui-bootstrap-tpls-0.14.3.min.js

 <select id="selectbasic" name="selectbasic" class="form-control" s ng-model="OWNER_ID">
     <option ng-repeat="owner in owners" value={{owner.OWNER_ID}}>{{owner.OWNER_NAME}}</option>
 </select>