Hierarchical levels in Find Terms might not work in ontologies that have extra backslashes

Griffin has warned us that the ACT ontology might have extra backslashes in the key that do not correspond to a row in the database.

For example, \1\2\3\ might have \1\ as its parent, and \1\2\ would not exist in the ontology at all.

This might break the hierarchy levels in the new Find Terms by name and needs to be tested.