Shell completion not honouring escaped characters

[Andrew Parker]

BASH_VERSION 3.1.1(1)-release
Running on Fedora Core 5 (test 2)

Pressing tab on a line with escape characters will ignore, and remove, 
the escaped characters to perform the completion.  For example, pressing 
tab at the end of each of these lines removes the "\" and changes the 
meaning of the line.

   ls \~andy/
   ls \`pwd`/

granted, the last one isn't a useful command, but does illustrate the 
problem.  on my systems, the output is:

   ls ~andy/
   ls /home/andy/

I've seen this on other versions of bash too (2.05b.0(1)-release and 
3.00.14(1)-release).