In latest snapshot, Trial Spawners stop spawning mobs when domobspawning is off

In the latest snapshot (24w18a) when the gamerule doMobSpawning is off, trial spawners do not work. Hopefully this is not "works as intended" as I didn't have this problem with normal spawners. Trying to make an adventure map without normal spawns and it heavily relies on the trial spawner. Video Proof