BEGIN { skip "requires 5.22.0" if $^V lt v5.22.0 } # omit
use if $^V ge v5.20.0, 'experimental', 'refaliasing'; # omit
my @array = (1, 2);
our @ar2 = (1, 2);
\(@array) = \(@ar2);
\(@ar2) = \(@array)
