2.3.0-rc1

Dispatch

• bot.command(name, ...) now ignores commands addressed to another bot: in a
  group, /start@some_bot runs the handler only when @some_bot is this bot's
  own username (compared case-insensitively, as Telegram usernames are);
  /start@other_bot falls through to downstream middleware, and a bare /start
  still always matches. The command name itself stays case-sensitive. To make
  the comparison, the bot learns its own @username via getMe(), called once
  inside bot.init() and kept for the process lifetime (a bot's username is
  permanent, so there is no refresh). The bot's identity is exposed as
  bot.botInfo (User | undefined) and to handlers as ctx.me.

Full diff: v2.3.0-rc0...v2.3.0-rc1