Filename completion bug in csh?

[Michel Fingerhut]

Whenever I type the <ESC> character to instuct csh to perform file name
completion, it echoes some garbage on the screen ( actually "^[  " ) but
performs the completion correctly.  E.g., if the complete name is 
"filename" and <ESC> was typed after the "file" prefix, it will echo
as "file^[  name".

As far as I can tell, it is the "pass8" feature of the tty which is not
disabled (although stty shows it is), because when I capture the echoed
output I see the backspace (^H) is sent as an 8-bit char rather than 7
(i.e., 0210 instead of 010).

Any help, please?