exit status bug

[Tom Lord]

This script illustrates an exit status bug in GNU bash labeled 2.02.1.

        false 
        echo $?
        ! false
        echo $?
        ( false )
        echo $?
        ( ! false )
        echo $?

Output from the script should be:

        1
        0
        1
        0

but is instead:

        1
        0
        1
        1

-t