Ominous trial spawners created by a player using /setblock or a debug stick function like regular trial spawners

Start by placing a normal trial spawner on the ground, then use the debug stick to adjust its state so that it becomes an ominous trial spawner. Place a spawn egg inside the ominous trial spawner and switch the game mode to survival to activate it. When you kill all the monsters that spawn, a normal trial key is spit out from the mouth of the ominous trial spawner.

The drop was taken away, and the contents of the ominous trial spawner were gone, so I threw a wither into the ominous trial spawner. After activating it, the wither spawned out normally, but the chosen creature in the ominous trial spawner was the first time I placed it. When we saw a wither running out of the spawner, I think I was unlucky to be spit out the bread, and theoretically there is still a chance of a normal key this time.

It doesn't seem to matter that only creative mode triggers this issue, but it ruined my save because everything in the map I made was tweaked this way.

It's worth noting that if I put a happy ghast in the ominous trial spawner, it won't come out properly. I didn't do any research on it due to lack of space or the wrong location.