Steps to reproduce:
1. create a world with multiplayer->invite only
2. ask a friend to join your world.
3. send him/her an invite.
4. kick him/her using Minecraft GUI or /kick command.
5. send him/her an invite again.
Observed results:
The kicked Player can't join the game, unless the Server restarts the world.
Expected results:
Inviting the Player should revoke the "KICK".
NOTE:
I tested this on LAN with both accounts->sign in.
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