refs #15096 [master] fixes getOtherRelationshipEntry()

* now uses given labels as keys

module/finc/src/finc/RecordDriver/SolrMarcFincTrait.php

@@ -1100,7 +1100,7 @@ trait SolrMarcFincTrait
         // rearrange return array to collect same subjects below on unique key
         $array = [];
         foreach ($retval as $item) {
-            $array[(sha1($item['subject']))][] = $item;
+            $array[$item['subject']][] = $item;
         }
         return $array;
     }