This page exists only so you can click a link from the main mock host and watch what survives a real document navigation. Ask the concierge a follow-up here to confirm the conversation continues.
src should carry the
same ?conv= value it had on page 1 — that is the conversation-group id, and it
is what makes the dashboard count this as one conversation instead of two. If you were
typing on page 1 you should still be typing here, without touching the mode toggle.
And the concierge must not greet you as a returning guest: you never left.