Bugfix fix php warnings

Author: hannesbochmann

Documentation/Changelog/Index.md

@@ -1,6 +1,11 @@
 Changelog
 =========
 
+12.0.12
+-----
+
+- Fix PHP warnings
+
 12.0.11
 -----
 

service/engine/class.tx_mksearch_service_engine_Solr.php

@@ -181,7 +181,7 @@ private function searchSolr($fields, $options)
             if ('true' == ($options['group.ngroups'] ?? '')) {
                 $ret['numFound'] = $response->grouped->{$options['group.field']}->ngroups ?? 0;
             } else {
-                $ret['numFound'] = $response->response->numFound;
+                $ret['numFound'] = $response->response?->numFound ?? 0;
             }
 
             $ret['response'] = &$response; // wichtig, wird im SolrResponseProcessor benötigt
@@ -710,7 +710,7 @@ public static function getHitsFromSolrResponse(Apache_Solr_Response $response, a
                 }
             }
         } else {
-            $docs = $response->response->docs;
+            $docs = $response->response?->docs ?? null;
         }
 
         $hits = [];