Implement the new fields for bold, italic, underline, and strike-through.

src/parser/util.rs

@@ -81,14 +81,21 @@ pub(crate) fn maybe_consume_object_trailing_whitespace_if_not_exiting<'b, 'g, 'r
     input: OrgSource<'s>,
 ) -> Res<OrgSource<'s>, Option<OrgSource<'s>>> {
     // We have to check exit matcher after each character because description list tags need to end with a space unconsumed (" ::").
-    let (remaining, _) = many_till(
+    let (remaining, post_blank) = recognize(many_till(
         one_of(" \t"),
         alt((
             peek(recognize(none_of(" \t"))),
             parser_with_context!(exit_matcher_parser)(context),
         )),
-    )(input)?;
-    Ok((remaining, None))
+    ))(input)?;
+    Ok((
+        remaining,
+        if post_blank.len() == 0 {
+            None
+        } else {
+            Some(post_blank)
+        },
+    ))
 }
 
 #[cfg_attr(