Actually the continue block is not executed for a redo. Consider:

use warnings;
use strict;

my $yodda = 0;
while ($yodda < 4) {
    redo if ++$yodda & 1;
    
    print "Even is ";
} continue {
    print "$yodda\n";
}
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Prints:

Even is 2
Even is 4
[download]