CodeListReference field binding causes invalid xml

stardat-ddi-entities@66299a28 (comment 55107)
https://git.gesis.org/stardat/flatdb-dialectdefinitions/commit/6f1c1c8fb9fcbccbd1c7f05fa536685b64c8cd0b
findOrCreateNodes seems not to create/return respective node:
Solution see https://git.gesis.org/stardat/stardat-ddi-entities/issues/97

Edited Aug 26, 2020 by Alexander Mühlbauer

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