History citations lag behind answer text on large cited responses

Problem

On heavily cited chat.ask() responses, the answer text shows up in get_conversation_turns() with many inline [N] placeholders, but structured citations in the turn payload are missing or very incomplete (e.g. 1 citation while the answer references 300+).

This can persist for 15–20+ seconds of polling. session_status() does not clearly indicate when citation persistence is done.

Not sure the citation count is the trigger; it may happen with smaller numbers too.

Env: notebooklm-py 0.8.x, web backend.

Any advice on the right way to wait for or retrieve complete citation metadata in this case?