Bot intercepts messages addressed to other bots

[sentry-junior]

When a message follows the pattern @[other-bot] [instruction], the current Junior instance responds to it even though the mention targets a different bot account (e.g. @junior-staging).

• A user addressed @junior-staging with a task. The staging bot responded (and failed). On a follow-up message still addressed to @junior-staging, the production bot intercepted and executed instead.
• The @[account] [instruction] pattern should be treated as addressed only to the mentioned account. If the mention does not match the current bot's identity, the message should be ignored.
• This applies to any sibling bot accounts (staging, dev, etc.) sharing the same workspace.

Action taken on behalf of David Cramer.

[dcramer]

I actually am not even sure we clearly flag (to the bot) when the message is explicitly directed at them, explicitly mentions them, etc