misc: do not export cached_ attributes (#12879)

combo/data/models.py

@@ -213,6 +213,9 @@ class Page(models.Model):
         for cell in serialized_page['cells']:
             del cell['pk']
             del cell['fields']['page']
+            for key in cell['fields'].keys():
+                if key.startswith('cached_'):
+                    del cell['fields'][key]
         return serialized_page
 
     @classmethod

tests/test_wcs.py

@@ -1,5 +1,6 @@
 import pytest
 
+import json
 import re
 import requests
 import subprocess
@@ -226,6 +227,8 @@ def test_form_cell_save_cache():
     cell.save()
     assert cell.cached_title == 'form title'
     assert cell.get_additional_label() == 'form title'
+    # make sure cached attributes are removed from serialized pages
+    assert not 'cached_' in json.dumps(page.get_serialized_page())
 
 @wcsctl_present
 def test_category_cell_save_cache():