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  1. Minecraft: Java Edition
  2. MC-112990

Powered data parameter of furnace minecart is set by client as well


    • Icon: Bug Bug
    • Resolution: Fixed
    • 19w46a
    • Minecraft 1.11.2, Minecraft 1.12.2, Minecraft 17w45b, Minecraft 17w46a, Minecraft 1.13-pre3
    • Confirmed
    • Minecart
    • Low

      The bug

      Based on 1.11.2 decompiled using MCP 9.35 rc1

      Data parameters are used to detect changes and send them to the client. However, the POWERED data parameter is also set by the client which kind of defeats the purpose of the parameter.

      How to reproduce

      Based on MC-112988

      1. Place a furnace minecart and power it
      2. Reload the world
        → You will see that it appears as unpowered. This happens because caused by MC-112988 the fuel value is 0 for the client. The server is sending the correct POWERED data parameter value but the client is overriding it.

            slicedlime [Mojang] slicedlime
            marcono1234 Marcono1234
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