mark_awaiting_text is the 'Other (type answer)' mode-flip, not a send-time
setup call — invoking it in send_clarify forces the user's next message to
be captured as the clarify response, racing the button-click path and
bypassing the buttons entirely. Telegram calls it only in the 'other'
callback branch; do the same here.
aeyeopsdev
fce298f700