- fixed missing title in hierarchyTree if "title_in_hierarchy" is empty (optional index field, was introduced in https://github.com/vufind-org/vufind/commit/39582484ac0f7699f739e47cf2a794f559e19841)
Merge pull request #248 from finc/pullrequest_4299

- fixed missing title in hierarchyTree if "title_in_hierarchy" is empty ...