feature request #9523
Check secundum of homotypic synonyms when changing accepted taxon to synonym
When changing an accepted taxon to a synonym of another accepted taxon, actually only the secundum of the old accepted taxon and the accepted taxon is checked. For a complete workflow the secudnum of the homotypic synonyms should be checked whether they differ from the secundum of the accepted taxon, the homotypic group should be moved to.
ref #9523: add homotypic synonym secundum informations to TaxonNodeDto, create homotypicalGroupDto