java.lang.NullPointerException after attacking a parrot

Killing parrots crashes your game. Note: I did kill other mobs and it isn't just swinging the sword and i got the same result everytime i killed a parrot.

19w40a: [^crash-2019-10-03_20.30.29-client.txt]

Description: Unexpected error

java.lang.NullPointerException: Unexpected error
at atd.a(SourceFile:407)
at axx.f(SourceFile:1234)
at dmq.a(SourceFile:363)
at das.aE(SourceFile:1234)
at das.aG(SourceFile:1517)
at das.n(SourceFile:1367)
at das.d(SourceFile:907)
at das.b(SourceFile:569)
at net.minecraft.client.main.Main.main(SourceFile:199)