Fix duplicate scope publishing issue

components/apimgt-extensions/io.entgra.device.mgt.core.apimgt.webapp.publisher/src/main/java/io/entgra/device/mgt/core/apimgt/webapp/publisher/APIPublisherServiceImpl.java

@@ -456,7 +456,8 @@ public class APIPublisherServiceImpl implements APIPublisherService {
 
             Scope scope = new Scope();
             for (DefaultPermission defaultPermission: defaultPermissions.getDefaultPermissions()) {
-                //todo check whether scope is available or not
+                if (!publisherRESTAPIServices.isSharedScopeNameExists(apiApplicationKey, accessTokenInfo,
+                        defaultPermission.getScopeMapping().getKey())) {
                     ScopeMapping scopeMapping = defaultPermission.getScopeMapping();
 
                     List<String> bindings = new ArrayList<>(
@@ -468,6 +469,7 @@ public class APIPublisherServiceImpl implements APIPublisherService {
                     scope.setBindings(bindings);
                     publisherRESTAPIServices.addNewSharedScope(apiApplicationKey, accessTokenInfo, scope);
                 }
+            }
         } catch (BadRequestException | UnexpectedResponseException | APIServicesException e) {
             log.error("Error occurred while adding default scopes");
         }