Looks like some kind of change somewhere between 5.18.4 and 5.20.3: 
[~]$ perlbrew exec perl -le '@_ = qw( a b c ); @A = ( shift @_ )[ 0, 0
+ ]; print @A'
[...]
perl-5.22.2
==========
aa


perl-5.20.3
==========
aa


perl-5.18.4
==========
a


perl-5.16.3
==========
a


perl-5.14.4
==========
a

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In reply to Re^2: Case where '( shift @_ )[ 0, 0 ]' returns only one value? by Paladin
in thread Case where '( shift @_ )[ 0, 0 ]' returns only one value? by rsFalse

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