Function, which is called by OOC3.
INTEGRATION BEFORE_UPDATE> perform check vacancy> perform rh_process_vacancy.
If it is set to vacancy management (PPVAC PPVAC 1), 'rh_process_vacancy' in 'form check_vacancy' delete the contents to be stored in the description (HRT1002).
In other words, if it is set to vacancy management, it does not save the description (HRT1002) when creating a new event (D) in OOC3.