If you don't specify the local modifier then @o is visible outside the scope. I.e. 
use strict;
{ local our $a = "A"; }
{ our $b = "B"; }
print "a = $a\n";
print "b = $b\n";
__DATA__
a =
b = B

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In reply to Re^5: Multiple uses of (?{ code }) do not appear to be called by bsdz
in thread Multiple uses of (?{ code }) do not appear to be called by bsdz

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