Ender Dragon duplicates.when entering end gate with ender pearl

Ender Dragon duplicates when entering end gate with ender pearl

Steps to reproduce

#Step 1 go to end
#Step 2 fly to the end islands
#Step 3 find a end gate
#Step 4 Throw an ender pearl into the gate

observed results

You spawn on the platform and as I've observed there are 2 ender dragons with multiple boss bars.