Gnome-terminal: pressing "tab" triggers history even when shell not reading stdin

[Salvador Girbau]

Using Ubuntu Oneiric, Gnome 3 Classic (but with compiz).

bash -version says: GNU bash, version 4.2.10(1)-release (x86_64-pc-linux-gnu)
menu help/about in terminal says: GNOME Terminal 3.0.1

1) Open a terminal.
2) Start a program that consumes input, like: bc
   (In theory, now the shell is waiting for "bc" to terminate, and "bc" is reading from stdin).
3) Press "tab" (the intention is to indent the next input line to "bc"). No indentation, nor anything occurs.
4) Press "tab" a second time, and this message appears:
   Display all 221 possibilities? (y or n)

[Salvador Girbau (sgirbau)]

My apologies, the bug title should read "triggers auto-completion", or some like that, and not "triggers history". My bad.