Conditional Regexp matching problem in 3.2

[rew]

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' -DLOCALEDIR='/usr/local/share/locale' -DPACKAGE='bash' 
-DSHELL -DHAVE_CONFIG_H   -I.  -I. -I./include -I./lib   -g -O2
uname output: Linux kansas 2.4.18-26.7.x #1 Mon Feb 24 10:15:02 EST 2003 i686 
unknown
Machine Type: i686-pc-linux-gnu

Bash Version: 3.2
Patch Level: 0
Release Status: release

Description:
        A simple regexp match using =~ inside [[ ]] works on 3.0.16
        and 3.1 versions of bash, but doesn't in 3.2.

        In pre-3.2 versions, the script in "Repeat-By" (below)
        produces one line of output: "Dog 01 is Wiggles".  In 3.2, the
        regexp no longer matches, so it produces nothing.

Repeat-By:
        # run this, eh?
        DOG="Dog name - 01 - Wiggles"
        if [[ $DOG =~ "([[:alpha:][:blank:]]*)- ([[:digit:]]*) - (.*)$" ]]
        then
           echo Dog ${BASH_REMATCH[2]} is ${BASH_REMATCH[3]}
        fi

Fix:
        [Description of how to fix the problem.  If you don't know a
        fix for the problem, don't include this section.]