msi: Only load the features and files tables once.

dlls/msi/action.c

@@ -1315,6 +1315,9 @@ static UINT load_all_files(MSIPACKAGE *package)
          '`','F','i','l','e','`',' ', 'O','R','D','E','R',' ','B','Y',' ',
          '`','S','e','q','u','e','n','c','e','`', 0};
 
+    if (!list_empty(&package->files))
+        return ERROR_SUCCESS;
+
     rc = MSI_DatabaseOpenViewW(package->db, Query, &view);
     if (rc != ERROR_SUCCESS)
         return ERROR_SUCCESS;
@@ -1361,8 +1364,11 @@ static UINT ACTION_CostInitialize(MSIPACKAGE *package)
     if (rc != ERROR_SUCCESS)
         return rc;
 
+    if (list_empty(&package->features))
+    {
         rc = MSI_IterateRecords(view, NULL, load_feature, package);
         msiobj_release(&view->hdr);
+    }
 
     load_all_files(package);