[0.12.26][multiplayer]Cardinal Bug on Multiplayer

[HelkaPL]

Well, so in first i will Sorry for my English.

We discovered a serious deviation action Multiplayers Game, so when a player changes the name of the player exactly the same as ours, and during this time we are offline, the game reads your character in the client game, so actually can do anything on our behalf, including the emptying of our backpack, or death.
The only case where this does not happen is when someone'm trying to impersonate us during our presence on the server, then you just play it creates a new form with the same nickname.
I would not prompt the so-called griffers but it's a great idea to annoy and spoil the pleasure, or wogole the opportunity to play other players.
We would ask for as quickly as possible to look into the matter. It is in this way, some players shared spoils the game.

[kovarex]

Hello, this is not bug, but a feature request.

We will make some improvements of the multiplayer in 0.13, using official server as authority to check that the user is really the one with the nick when joining the game might be one of these.