Missed a bit

Author: benjie

spec/Section 6 -- Execution.md

@@ -801,7 +801,8 @@ handled by the parent field. If the parent field may be {null} then it resolves
 to {null}, otherwise if it is a `Non-Null` type, the field error is further
 propagated to its parent field.
 
-If a `List` type wraps a `Non-Null` type, and one of the elements of that list
+If a `List` type wraps a `Non-Null` type, the operation does not provide the
+`@disableErrorPropagation` directive, and one of the elements of that list
 resolves to {null}, then the entire list must resolve to {null}. If the `List`
 type is also wrapped in a `Non-Null` and the operation does not provide the
 `@disableErrorPropagation` directive, the field error continues to propagate