extglob, @() format disfunctional

[Ronald Hoogenboom]

Configuration Information [Automatically generated, do not change]:
Machine: i386
OS: linux-gnu
Compiler: i386-redhat-linux-gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i386' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i386-redhat-linux-gnu' 
-DCONF_VENDOR='redhat' -DSHELL -DHAVE_CONFIG_H  -I.  -I. -I./include 
-I./lib -D_FILE_OFFSET_BITS=64 -O2 -g -pipe -march=i386 -mcpu=i686
uname output: Linux speedy-k6.grundel 2.4.20-19.7 #1 Wed Mar 31 00:53:02 
CEST 2004 i586 i586 i386 GNU/Linux
Machine Type: i386-redhat-linux-gnu

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

Description:
        According to the man page, the extglob format 
@(pattern[|pattern..]) should match when exactly one of the pattern 
match. But in my experience, it matches when any of the patterns match 
(including multiple).
        Maybe the description is wrong and should be 'matches any of 
the patterns exactly one time'

Repeat-By:
        fi.:

shopt -s extglob
[[ ab/../ == @(ab|+([^/]))/..?(/) ]] && echo match

should not print match, because both 'ab' and '+([^/])' match on ab, but 
does.