Store the affiliated keywords on the plainlist.

src/parser/plain_list.rs

@@ -159,11 +159,13 @@ pub(crate) fn plain_list<'b, 'g, 'r, 's>(
     let (remaining, _trailing_ws) =
         maybe_consume_trailing_whitespace_if_not_exiting(context, remaining)?;
     let source = get_consumed(input, remaining);
+    let name = get_name(&affiliated_keywords);
     Ok((
         remaining,
         PlainList {
             source: source.into(),
-            name: get_name(&affiliated_keywords),
+            affiliated_keywords,
+            name,
             list_type: first_item_list_type.expect("Plain lists require at least one element."),
             children: children.into_iter().map(|(_start, item)| item).collect(),
         },