Ough, we should unwrap nonmembers first

Author: sterliakov

mypy/checkmember.py

@@ -1345,8 +1345,6 @@ def analyze_enum_class_attribute_access(
     # Skip these since Enum will remove it
     if name in EXCLUDED_ENUM_ATTRIBUTES:
         return report_missing_attribute(mx.original_type, itype, name, mx)
-    if name not in itype.type.enum_members:
-        return None
 
     node = itype.type.get(name)
     if node and node.type:
@@ -1359,6 +1357,9 @@ def analyze_enum_class_attribute_access(
         ):
             return proper.args[0]
 
+    if name not in itype.type.enum_members:
+        return None
+
     enum_literal = LiteralType(name, fallback=itype)
     return itype.copy_modified(last_known_value=enum_literal)