When collecting all matching result nodes, only take the leaf-most ones

This avoids triggering on nodes that already have results propagated
upwards.

src/lib/engine/extractorfilter.cpp

@@ -176,6 +176,17 @@ static bool filterMachesNode(const ExtractorFilter &filter, ExtractorFilter::Sco
     }
 
     if (scope != ExtractorFilter::Ancestors && filter.mimeType() == QLatin1String("application/ld+json") && !node.result().isEmpty()) {
+        // when collecting all matches for results, we only want the "leaf-most" ones, not those along the path
+        if (matchMode == All && scope == ExtractorFilter::Descendants) {
+            bool descendantsMatched = false;
+            for (const auto &child : node.childNodes()) {
+                descendantsMatched |= filterMachesNode(filter, ExtractorFilter::Descendants, child, matches, matchMode);
+            }
+            if (descendantsMatched) {
+                return true;
+            }
+        }
+
         const auto res = node.result().jsonLdResult();
         for (const auto &elem : res) {
             const auto property = valueForJsonPath(elem.toObject(), filter.fieldName());