Snapshot 19w04b, No end dragon/well

When I went into the end in a snapshot survival world I saw no ender dragon and no end well.

What I expected to happen was...:
To kill it

What actually happened was...:
I did /kill @e (because I summoned an ender dragon w/ no ai) and killed myself, (Overworld) My 4 maxed out villagers, my 10+ Iron golems and my horse (and item frames and cattle)