Fix hierarchical facet's property path

src/server/sparql/FacetValues.js

@@ -109,7 +109,7 @@ export const getFacet = async ({
   )
   if (facetConfig.type === 'hierarchical') {
     q = q.replace('<ORDER_BY>', '# no need for ordering')
-    q = q.replace(/<PREDICATE>/g, `${facetConfig.predicate}/${facetConfig.parentProperty}+`)
+    q = q.replace(/<PREDICATE>/g, `${facetConfig.predicate}/${facetConfig.parentProperty}*`)
     q = q.replace('<PARENTS>', `
             OPTIONAL { ?id ${facetConfig.parentProperty} ?parent_ }
             BIND(COALESCE(?parent_, '0') as ?parent)

src/server/sparql/Filters.js

@@ -330,7 +330,7 @@ const generateDisjunctionForUriFilter = ({
 }) => {
   let s = ''
   const predicateModified = includeChildren
-    ? `${predicate}/${parentProperty}+`
+    ? `${predicate}/${parentProperty}*`
     : predicate
   const filterTriple = `?${filterTarget} ${predicateModified} ?${facetID}Filter .`
   if (filterTripleFirst) {
@@ -363,7 +363,7 @@ const generateConjuctionForUriFilter = ({
   valuesStr
 }) => {
   const predicateModified = includeChildren
-    ? `${predicate}/${parentProperty}+`
+    ? `${predicate}/${parentProperty}*`
     : predicate
   if (inverse) {
     return `