Avoid direct call to getConfig().

module/VuFind/src/VuFind/ILS/Connection.php

@@ -284,6 +284,9 @@ class Connection implements TranslatorAwareInterface
                     $functionConfig['helpText']
                 );
             }
+            if (isset($functionConfig['consortium'])) {
+                $response['consortium'] = $functionConfig['consortium'];
+            }
         } else if ($this->checkCapability('getHoldLink')) {
             $response = array('function' => "getHoldLink");
         }

module/VuFind/src/VuFind/ILS/Logic/Holds.php

@@ -169,7 +169,7 @@ class Holds
             $patron = $this->ilsAuth->storedCatalogLogin();
 
             // Does this ILS Driver handle consortial holdings?
-            $config = $this->catalog->getConfig('Holds');
+            $config = $this->catalog->checkFunction('Holds');
             if (isset($config['consortium']) && $config['consortium'] == true) {
                 $result = $this->catalog->getConsortialHoldings(
                     $id, $patron ? $patron : null, $ids