Stickers, voice notes, and captionless photos from the bot also lack
text and caption fields, so the previous check incorrectly classified
them as system messages and suppressed implicitMention.
Switch to checking for Telegram's forum_topic_* / general_forum_topic_*
service-message fields which only appear on actual service messages.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Address Greptile review feedback: bot media messages (photo/video) use
caption instead of text, so they would be incorrectly classified as
system messages. Add !caption guard to the system message check.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
When a Telegram Forum topic is created by the bot, Telegram generates a
system message with from.id=botId and empty text. Every subsequent user
message in that topic has reply_to_message pointing to this system
message, causing the implicitMention check to fire and bypassing
requireMention for every single message.
Add a guard that recognises system messages (is_bot=true with no text)
and excludes them from implicit mention detection, so that only genuine
replies to bot messages trigger the bypass.
Closes#32256
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
