When caching take into account the user otherwise cache becomes global for all users.

bt5/erp5_authentication_policy/SkinTemplateItem/portal_skins/erp5_authentication_policy/Person_isPasswordExpired.xml

@@ -88,7 +88,7 @@ def _isPasswordExpired():\n
   return False, expire_date_warning\n
 \n
 _isPasswordExpired = CachingMethod(_isPasswordExpired,\n
-                                   id=\'Person_isPasswordExpired\',\n
+                                   id=\'Person_isPasswordExpired_%s\' %context.getReference(),\n
                                    cache_factory=\'erp5_content_short\')\n
 is_password_expired, expire_date = _isPasswordExpired()\n
 \n

bt5/erp5_authentication_policy/bt/revision

-21
\ No newline at end of file
+22
\ No newline at end of file