WIP: preserve Issue #479 changes

backend/spec/requests/error_responses_spec.rb

@@ -20,7 +20,7 @@ RSpec.describe 'error responses', type: :request do
 
       patch "/tags/#{ tag.id }", params: { category: 'nico' }
 
-      expect(response).to have_http_status(:unprocessable_entity)
+      expect(response).to have_http_status(:unprocessable_content)
       expect(json).to include(
           'type' => 'validation_error',
           'message' => '入力内容を確認してください．',
@@ -37,7 +37,7 @@ RSpec.describe 'error responses', type: :request do
 
       put "/users/#{ user.id }", params: { name: 'a' * 256 }
 
-      expect(response).to have_http_status(:unprocessable_entity)
+      expect(response).to have_http_status(:unprocessable_content)
       expect(json).to include(
           'type' => 'validation_error',
           'message' => '入力内容を確認してください．')