FIX: force placeholder cache clearing

when updating a PlaceholderField content

Author: Adrien Delhorme

README.rst

@@ -6,6 +6,8 @@ django CMS
 This fork release/3.7.x branch includes
 ***************************************
 
+- FIX: force placeholder cache clearing (from branch:
+  fix/placeholder-field-cache-clear)
 - FIX: publishing static placeholders outside of CMS (from branch:
   fix/static-placeholder-publishing)
 - FEAT: redirect to login url on restricted pages (from branch:

cms/models/placeholdermodel.py

@@ -510,6 +510,8 @@ def mark_as_dirty(self, language, clear_cache=True):
 
         elif attached_model is StaticPlaceholder:
             StaticPlaceholder.objects.filter(draft=self).update(dirty=True)
+        else:
+            self.clear_cache(language)
 
     def get_plugin_tree_order(self, language, parent_id=None):
         """