Try this version of your code that uses Data::Dump and things become obvious:
#! perl -slw
use strict;
use warnings;
use Storable qw(dclone);
use Data::Dump qw[ pp ];
my $str = "Rico";
$str =~ m{(?<name>ico)}xms;
my $match = dclone \%+;
print \%+,;
print " match: $match -", pp $match;
$str =~ m{(?<buba>R)}xms;
my $match2 = dclone \%+;
print \%+;
print " match: $match ", pp $match;
print "match2: $match2 ", pp $match2;
__END__
C:\test>816700
HASH(0x22ee20)
match: HASH(0x6f218) -{
# tied Tie::Hash::NamedCapture
}
HASH(0x22ee20)
match: HASH(0x6f218) {
# tied Tie::Hash::NamedCapture
}
match2: HASH(0x6f128) {
# tied Tie::Hash::NamedCapture
}
%+ is not a real hash, but rather a tied hash. And cloning it appears to simply gives you another tied reference to the same global internal data structure.
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
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