core dump with: ls; fc -s ls='ls -l'

[alok_singhal]

Configuration Information [Automatically generated, do not change]:
Machine: sparc
OS: solaris2.5.1
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DHOSTTYPE='sparc' 
-DOSTYPE='solaris2.5.1' -DMACHTYPE='sparc-sun-solaris2.5.1' -DSHELL  
-DHAVE_CONFIG_H -DSunOS5  -I. -I. -I./lib -g -O2
uname output: SunOS norma.astro.Virginia.EDU 5.8 Generic_108528-10 sun4u sparc 
SUNW,Ultra-5_10
Machine Type: sparc-sun-solaris2.5.1

Bash Version: 2.01
Patch Level: 1
Release Status: release

Description:
        ls followed by fc -s ls='ls -l' does a core dump. This problem does
        not occur if I use other commands (e.g., cat). Tried with both gnu ls
        as well as solaris ls.

Repeat-By:
        On command prompt, type "ls", after that, type "fc -s ls='ls-l'".