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    # The sort of result that was no doubt expected:
    $ perl -e 'use Data::Dumper; my $hr = bless {a=>1}, "H::R"; my $r = $h
    +r; print Dumper $r'
    ...
    $ perl -e 'use strict; use Data::Dumper; my $hr = bless {a=>1}, "H::R"
    +; my $r = "$hr\n"; print Dumper %$r'
    Can't use string ("H::R=HASH(0x800003b78)
    ") as a HASH ref while "strict refs" in use at -e line 1.