Ilia Denisov
fc1715128e
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Telegram silently routes a copyMessage aimed at a deleted forum topic into the chat's General topic with NO error, so the bot's error-based recreate never fired — the user's next message landed in General with no card. Confirmed against the prod bot logs: a relay after a topic deletion logged neither "relay to topic failed" nor "topic gone, reopening". Probe topic liveness before reusing it: re-applying the info card's reply markup is a no-op that errors only when the card (hence the topic) is gone, so the bot detects the deletion and reopens the topic + card rather than relying on the (absent) copy error. The post-copy recreate stays as a race backstop.