CTE never ends

[kalgon]

The following CTE never ends in H2 2.3.232, although it does in MySQL:

with recursive
	mutations(time, old, new) as (
		select 1, 'A', 'B' union
		select 2, 'B', 'C' union
		select 3, 'B', 'B' union
		select 4, 'A', 'A' union
		select 5, 'C', 'B' union
		select 6, 'C', 'C' union
		select 7, 'A', 'B' union
		select 8, 'D', 'E'
	),
	permutations(x, y) as (
		select new, old from mutations union
		select old, new from mutations
	),
	related(val) as (
		select ? union
		select x from related join permutations on y = val
	)
select val from related order by 1

CTE.java.txt