[Bug-readline] readline eats previous text on line

[Jon Wilson]

Hi,
Using guile 1.8, which uses readline, I find that if I make a call to
readline("prompt: ");
that anything I have already output on the current line is deleted and 
replaced with "prompt: ".  If I call
readline("");,
then I get a completely blank line.

Unfortunately, I'm not familiar with the internals of guile and how it 
uses readline exactly.  I'm guessing that when I make the scheme call
(readline "prompt: ")
that the above is the equivalent in C.  It seems to be the case, based 
on the description in the readline programmers manual of the readline 
function's behavior vs the behavior of my guile call (they are the same).

Is this (eating the beginning of the line) correct behavior?  If so, how 
can I change it?
Regards,
Jon