EDIT

ref #6687 ConversationHolder improvements for pre view based conversation in cdm-vaadin\n - improved logging for multi thread environments\n - configurable default flushMode

ref #6754 ref #6755 use IDs for candidate retrieval

ref #6754 ref #6755 add includeRootNodes and fix count

ref #6754 ref #6755 combine TaxonNodeFilter with DwcA export

Fix exception message

ref #6687 fixing bug in ConversationHolder object comparison by == operator and better logging

cleanup tests in io and service

evaluate doSynonyms for taxon node children retrieval

fix #6750 implementing DerivedUnitConverter with test

ref #6694 Add service method to add child features

• also add parent of deleted feature node to DeleteResult