RDM - cannot disassociate from parent a child concept with two or more parents

[caustin-gonzalez]

This occurred while using the Arches for HER demo's RDM module, editing relationships between terms in the FISH Archaeological Objects Thesaurus.

If a concept has two or more parents, the "delete concept" button available in the broader/narrower concepts area...

does not let me follow through. What follows is the expected pop-up "Delete this concept?" confirmation, but instead of the concept being listed as expected, there is a blank bullet point:

Pressing "Yes" to confirm has no effect. The pop-up either closes with no effect, or remains open. Refreshing the page after either scenario, or clicking off and back onto the object, doesn't update the relationship; the child concept stays under the parent from which you tried to disassociate it.

This doesn't seem to affect concepts with only one parent.