-- main.mcl --
import "fmt"

$list = ["a", "b", "c",]

for $index, $value in $list {
	$s = $value # our first major bug was triggered by this!
	test [$s,] {}
}

# The buggy version would return "test[a]" three times!
-- OUTPUT --
Vertex: test[a]
Vertex: test[b]
Vertex: test[c]