Properly fetch holds from Voyager also when HOLD_RECALL.HOLDING_DB_ID = 0.

module/VuFind/src/VuFind/ILS/Driver/Voyager.php

@@ -1613,7 +1613,8 @@ class Voyager extends AbstractBase
             "(HOLD_RECALL_ITEMS.HOLD_RECALL_STATUS IS NULL OR " .
             "HOLD_RECALL_ITEMS.HOLD_RECALL_STATUS < 3)",
             "BIB_TEXT.BIB_ID = HOLD_RECALL.BIB_ID",
-            "(HOLD_RECALL.HOLDING_DB_ID IS NULL OR (HOLD_RECALL.HOLDING_DB_ID = " .
+            "(HOLD_RECALL.HOLDING_DB_ID IS NULL OR HOLD_RECALL.HOLDING_DB_ID = 0" .
+            "OR (HOLD_RECALL.HOLDING_DB_ID = " .
             "VOYAGER_DATABASES.DB_ID AND VOYAGER_DATABASES.DB_CODE = 'LOCAL'))",
             "HOLD_RECALL.REQUEST_GROUP_ID = REQUEST_GROUP.GROUP_ID(+)"
         ];