EnderDragon/EnderCrystals spawn in Debug world

Whilst goofing around in a Debug world. I decided to take a look at the blocks in the Nether and End dimensions. As you may or may not know it's easy to acess the nether but not the End of an Debug world. But thats a topic for another bug report.
(which I've already done you can find it at
https://bugs.mojang.com/browse/MC-93847
I encourage you to read this befor
reading further here since it's kinda related )

Way to recreate.
In this case I'd like you to do the following:
klick the link above.
Why?
Well for two reasons.
Firstly, I've explained how to get into the debug End at my other post.
And secondly I am to lazy to write it down again here.
Second-and-a-half(ly):Getting into the Debug End on its one is a bug which is why I made a seprate bug post in the first place although these are related.