In r31303 of bleadperl this bug is fixed: 
$ perl5.9.5 -E 'say "match" if "f\n" ~~ /.*\z/'
match
Perl 6 in German

In reply to Re^3: Strange regex to test for newlines: /.*\z/ by moritz
in thread Strange regex to test for newlines: /.*\z/ by betterworld

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