EDIT

        if(event.getThrowable() != null){

                Registration registration = null;

                if(newNameForRegistrationPopupEditor != null && event.getPopup().equals(newNameForRegistrationPopupEditor)){

                    if(event.getReason().equals(Reason.SAVE)){

                        try {

                            TaxonName taxonName = newNameForRegistrationPopupEditor.getBean().cdmEntity();

                            registration = registrationWorkflowService.createRegistration(taxonName, newNameBlockingRegistrations);

                            loadWorkingSet(workingset.getCitationUuid());

                        } finally {

                            clearSession();

                            getView().getAddNewNameRegistrationButton().setEnabled(true);

                        }

                    // nullify and clear the memory on this popup editor in any case (SAVE, DELETE, CANCEL)

                    newNameForRegistrationPopupEditor = null;

                    newNameBlockingRegistrations.clear();

                    getView().getAddNewNameRegistrationButton().setEnabled(true);

                if(event.getReason().equals(Reason.SAVE)){

                    if(registration == null){

                        // no new registration has been created above, so there must be an existing one.

                        registration = findRegistrationInContext(event.getPopup());

                    }

                    // Check if the other names used in the context of the name are registered yet.

                    TaxonNamePopupEditor nameEditor = (TaxonNamePopupEditor)event.getPopup();

                    Set<TaxonName> namesToCheck = new HashSet<>();

                    namesToCheck.addAll(nameEditor.getBasionymComboboxSelect().getValue());

                    namesToCheck.addAll(nameEditor.getReplacedSynonymsComboboxSelect().getValue());

                    namesToCheck.add(nameEditor.getValidationField().getRelatedNameComboBox().getValue());

                    namesToCheck.add(nameEditor.getOrthographicVariantField().getRelatedNameComboBox().getValue());

                    for(TaxonName name : namesToCheck){

                        if(name != null){

                            clearSession();

                            registrationWorkflowService.addBlockingRegistration(name.getUuid(), registration);

                        }

                    }

                } else if (event.getReason().equals(Reason.DELETE)){

                    //FIXME handle delete: need to remove blocking registrations?

                // always reload if the first editor is closed as the data might have been changed through any other sub-popupeditor

                refreshView(isAtContextRoot(event.getPopup()));