EDIT

ref #7686 Do not use null for keys in map (JSON error)

ref #7686 Do not ignore types without type status

ref #7686 Use titleCache if no identifier can be found

ref #7657 code refactoring

ref #7657 Increase loading speed for matrix

fix NPE in TypeDesignationSetManager.stringify(TypeDesignationSetManager.java:522)

cleanup

ref #7664 adapt return type for many methods with defined typification

removing unused duplicate property PreservedSpecimenDTOs

fieldUnitDTO code cleaning