> I don't know how far "some" reaches, but try <CTRL>-Q then <TAB>
> (mnemonics: Q like "quote").
>
> Not Emacs-y, but worth a try would be <CTRL>-I
You can also try `C-v` instead of `C-q` to quote the next key (not sure
where this comes from, but it works in bash and zsh, IIUC), i.e. use
`C-v TAB` to insert a TAB character.
Stefan "who can't be bothered to reboot to try it out"