empty expansion on <<< crashes bash

[Jim Paris]

Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i686' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu' 
-DCONF_VENDOR='pc' -DSHELL -DHAVE_CONFIG_H  -I.  -I. -I./include -I./lib  -O3 
-fomit-frame-pointer -march=i686
uname output: Linux neurosis 2.4.18 #16 Sun Mar 17 02:34:39 EST 2002 i686 
unknown
Machine Type: i686-pc-linux-gnu

Bash Version: 2.05b
Patch Level: 0
Release Status: release

Description:
        Empty expansion after <<< crashes bash

Repeat-By:
        $ export FOO=
        $ cat <<<$FOO
        Segmentation fault
        $

Fix:
        Haven't looked