dynamic array problem

gistfile1.txt

func main()
{
	var nums = text[] # a dynamic array
	ref n : text      # a 'int' reference
	
	nums += "foo" # add "foo"
	nums += "bar" # add "bar"
	nums += "baz" # add "baz"
	
	n => nums[1] # 'n' refers to 'num[1]'
	
	if RUNTIME_CONDITION
	{
		nums -= nums[1] # remove 'nums[1]' from 'nums'
	}
	
	assert(n == nil) # ??
}