EDIT

ref #6581 fix further tests

ref #6581 fix persistence tests (except for 1)

ref #9194, ref #6581 remove null values for CitationMicroReference and OriginalNameString from test data

ref #9194, ref #6581 use DescriptionElementSource for SingleSourcedEntityBase

fix failing test and cleanup

fix failing test and cleanup

fix #9081 cleaning up tests using "00000000" (cont.)

cleanup

fix #9081 cleaning up tests using "00000000"

cleanup