Update src/magicgui/_util.py

src/magicgui/_util.py

@@ -187,7 +187,7 @@ def _safe_isinstance_tuple(obj: object, superclass: object) -> bool:
 
 def safe_issubclass(obj: object, superclass: object) -> bool:
     """Safely check if obj is a subclass of superclass."""
-    if obj == superclass:
+    if obj is superclass:
         return True
     if isinstance(superclass, tuple):
         return any(safe_issubclass(obj, s) for s in superclass)