Only check computed fields if separate_input_output_schemas is False

fastapi/_compat/v2.py

@@ -200,7 +200,9 @@ def get_schema_from_model_field(
     ],
     separate_input_output_schemas: bool = True,
 ) -> Dict[str, Any]:
-    override_mode: Union[Literal["validation"], None] = (
+    override_mode: Union[Literal["validation"], None] = None
+    if not separate_input_output_schemas:
+        override_mode = (
             None
             if (separate_input_output_schemas or _has_computed_fields(field))
             else "validation"