bug with curly brace matching in perl mode

[Sabuj Pattanayek]

Emacs Version: 
21.2.1 (i386-msvc-nt5.1.2600) of 2002-03-19 on buffy

if you type something like this in perl mode (.pl file loaded):

sub foo {
    my ($bar) = @_;
    
    ${$bar}--;
}

Emacs does not match the } immediately after $bar with the { immediately
before $bar, but rather with the { after foo. But if you type

sub foo {
    my ($bar) = @_;
    
    $ {$bar}--;
} 

..that is put a space between the $ and { the next } matches just fine. I
know this is just picky, just wondering if you guys could do something
about this, thanks.