A programmable completoin bug?

[Clark J. Wang]

(Tested with bash 4.2.10 and 4.1.9)

[bash-4.2.10] # cat foo.compspec
compspec_foo()
{
    local cmd=$1 cur=$2 pre=$3

    if [[ $cur = :* ]]; then
        COMPREPLY=( changed changed/IGNORE_ME )
    fi
}

complete -F compspec_foo foo
[bash-4.2.10] # source foo.compspec
[bash-4.2.10] # foo :short<TAB>
[bash-4.2.10] # foo changed  <-- Fine, this is what I want
[bash-4.2.10] # foo :this-is-a-long-word<TAB>
[bash-4.2.10] # foo :this-i  <-- Bug here?

-- 
-Clark