Ender dragon monster spawner will not work

Most spawn eggs work with monster spawners but if you use an ender dragon spawn egg on a monster spawner the texture shows up but nothing spawns
Steps to reproduce:
1.get ender dragon spawn egg
2.get monster spawner
3.right click on monster spawner with ender dragon spawn egg selected
Expected results: a small ender dragon would render in the monster spawner and the monster spawner would spawn ender dragons just like all other spawn eggs including the wither spawn egg
Actual results: Spawner has the expected small mob render inside of it but it spawns no ender dragons