Add a TODO comment to the effect that this is a temp fix

src/textual/widgets/_option_list.py

@@ -630,6 +630,13 @@ class OptionList(ScrollView, can_focus=True):
         self.highlighted = None
         self._mouse_hovering_over = None
         self.virtual_size = Size(self.scrollable_content_region.width, 0)
+        # TODO: See https://github.com/Textualize/textual/issues/2582 -- it
+        # should not be necessary to do this like this here; ideally here in
+        # clear_options it would be a forced refresh, and also in a
+        # `on_show` it would be the same (which, I think, would actually
+        # solve the problem we're seeing). But, until such a time as we get
+        # to the bottom of 2582... this seems to delay the refresh enough
+        # that things fall into place.
         self._request_content_tracking_refresh()
         return self