Make listener update UI after doing modification at check-in on WTPart?

Version: Windchill 12.0

Use Case: Using a listener via API in order to update attributes at check-in of the corresponding WTPart / WTPartUsagelink.

Description:

Updating values of the attributes works perfectly, but after check-in using the browser UI, the new attribute values are not displayed on screen. The UI is not refreshed. Is there a command/hook or something that makes the web ui refresh?

If the user manually refreshes (hits F5), then the new values are displayed...

I tried those functions, but either wasn't competent enough or they are not made for this use case...:

// refresh for changes that might have been made to the object
working_part = (WTPart) PersistenceHelper.manager.refresh(working_part, true, true);


WorkInProgressHelper.service.refreshObject(working_part);
PersistenceServerHelper.manager.update(working_part);
PersistenceServerHelper.update(working_part);
wt.fc.PersistenceHelper.manager.save(working_part);
// this all does not help...

 Anybody have an idea?