Merge pull request #458 from ConductionNL/fix/error-on-casetype

Fix error on fetching case types

Author: rjzondervan

lib/Service/EndpointService.php

@@ -324,6 +324,10 @@ private function replaceInternalReferences(
                 continue;
             }
 
+            if (empty($use) === true) {
+                continue;
+            }
+
             if (Uuid::isValid(uuid: $use) === true) {
                 $useId = $use;
             } else if (