Completions which contain spaces don't work by as expected.

[John Darrington]

I have a custom completer which provides a largish number of possible
strings such as:

"Arrays"
"Array Instances"
"Array Literals"
"Array Deletion"
"Binary"
"Loops"
...

When completing single words everything is fine.
However when completing an entry which contains a space, then things
go wrong:  

One types "Arr" and hits TAB:  The line autocompletes to "Array".

Hit TAB again and the list of completions is shows:
 "Arrays"
 "Array Instances"
 "Array Literals"
 "Array Deletion"

... So far so good ...


Now I want to choose "Array Literals", so I enter " L" and hit TAB.  But
instead of completing to "Array Literals", readline starts a new
completion, and completes to "Array Loops" which is not a valid
completion.


I have tried fooling with rl_completer_word_break_characters, and
rl_basic_break_characters, and other variables, but none seems to
do anything useful.


So my questions are:

Is this a bug, or just me using the library incorrectly?
Is there any way to get the behaviour which the user would intuitively
expect?

Thanks,

J'