Verse hot reload failed

For me, this bug came from the fact i use Scene Graph and that I initialized my entity outside the OnBegin() function:

hello_world_device := class(creative_device):
    @editable DebugSpawnEntity : button_device = button_device{}

    var PrefabToSpawn : entity = Entities.Test{}

So I modified it this way, and I no longer have the Verse hot reload failed error.

hello_world_device := class(creative_device):
    @editable DebugSpawnEntity : button_device = button_device{}

    var PrefabToSpawn : ?entity = false
    # Runs when the device is started in a running game
    OnBegin<override>()<suspends>:void=
        set PrefabToSpawn = option{Entities.Test{}}