Merge branch 'complaints-mailer' into 'master'

if user is submitter returns forbidden

See merge request portalmec/portalmec!482

app/controllers/v1/users_controller.rb

@@ -100,7 +100,9 @@ class V1::UsersController < ApplicationController
   # POST /v1/users/:id/add_submitter
   # POST /v1/users/:id/add_submitter.json
   def add_submitter
-    if !approve_params.to_s.blank?
+    if @user.is_submitter?
+      render status: :forbidden
+    elsif !approve_params.to_s.blank?
       if approve_params
         @user.submitter_request = User.submitter_requests[:accepted]
         @user.roles << Role.where(name: "submitter")