gistfile1.txt

diff --git a/src/core/operators.pm b/src/core/operators.pm
index edc4e93..7d6d44c
--- a/src/core/operators.pm
+++ b/src/core/operators.pm
@@ -103,7 +103,7 @@ sub SEQUENCE($left, $right, :$exclude_end) {
             take $value;
         }
         unless $stop {
-            $tail.munch($tail.elems - 3) if $tail.elems > 3;
+            $tail.munch($tail.elems - 3) if $tail.elems > 3 && !$code.defined;
             my $a = $tail[0];
             my $b = $tail[1];
             my $c = $tail[2];