ISTWCMS-6159: Fixing bibcite bibtex exports.
requested to merge feature/ISTWCMS-6159-ibiki-bibcite_export into feature/ISTWCMS-5397-bibcite_release
This fix depends on patch https://www.drupal.org/project/bibcite/issues/3340674
This fix depends on patch https://www.drupal.org/project/bibcite/issues/3340674