removing parent directory messes up path

[b0iler _]

Configuration Information:
Machine: i386
OS: linux
Compiler: gcc -I/usr/src/packages/BUILD/bash-2.05
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i386' 
-DCONF_OSTYPE='linux' -DCONF_MACHTYPE='i386-suse-linux' -DCONF_VENDOR='suse' 
-DSHELL -DHAVE_CONFIG_H  -D_FILE_OFFSET_BITS=64  -I. -I/usr/include -I. 
-I./include -I./lib -I/usr/include -O2 -mcpu=i486 -march=i486 -D_GNU_SOURCE 
-Wall -pipe
uname output: Linux linux 2.4.10-4GB #1 Fri Sep 28 17:20:21 GMT 2001 i686 
unknown
Machine Type: i386-suse-linux

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

Description:
	when you create a directory then delete the directory it is in while in it 
bash will mess up when you do cd ..

Repeat-By:

        linux:~ # cd /
        linux:/ # mkdir problem
        linux:/ # cd problem
        linux:/problem # mkdir new
        linux:/problem # cd new
        linux:/problem/new # rm -rf /problem
        linux:/problem/new # cd ../
        linux:/problem/new # rm -rf /problem
        linux:/problem/new # cd ..
	cd: could not get current directory: getcwd: cannot access parent 
directories: No such file or directory
	cd: could not get current directory: getcwd: cannot access parent 
directories: No such file or directory
        linux:. # cd ..
	chdir: could not get current directory: getcwd: cannot access parent 
directories: No such file or directory
        linux:.. # cd ..
        linux:../.. # cd ..
        linux:../../.. # cd ..
        linux:../../../.. # cd ..
        linux:../../../../.. # pwd
        ../../../../..
        linux:../../../../.. #



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