Description

The socials interaction screen displays every player, which is listed in the tab list. It also lists players, which are added using the listed field of the 
ClientboundPlayerInfoUpdatePacket and setting it to false.

Observed Behaviour

The added player (NPC) is not visible in the tab list, but is visible in the social interactions screen.

Expected Behavior

The added player (NPC) should not be visible in the socials interaction screen if the listed field is set to false.

Steps to reproduce

1. Send a ClientboundPlayerInfoUpdatePacket with 
   some random data as ADD_PLAYER Action and listed set to false.

Notes

Although this might be an issue which does not happen in vanilla, the listed field has been added for exactly this purpose, so I guess it's still a valid issue.