dffml: Fix duplicate preference matching on exported names

pdxjohnny · pdxjohnny · commit 2af130454bb6 · 2023-12-05T15:49:52.000+01:00
`==` should have been `!=`, load order varies machine to machine, just came up
as an issue when `@config` started to become `ConfigLoader`.

Signed-off-by: John Andersen &lt;johnandersenpdx@gmail.com&gt;
diff --git a/dffml/__init__.py b/dffml/__init__.py
@@ -93,7 +93,7 @@ class DuplicateName(Exception):
                 # Do not expore any modules (they are probably just imported)
                 continue
             if name in DUPLICATE_PREFER:
-                if cls_func_all[name][0] == DUPLICATE_PREFER[name]:
+                if cls_func_all[name][0] != DUPLICATE_PREFER[name]:
                     continue
             elif cls_func_all[name][2] is obj:
                 pass
