PaperMC / PaperMC/Paper

Press F+Q keys simultaneously to create ghost items

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#10,964 5 comments 0 reactions 0 assignees View on GitHub

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status: accepted type: bug upstream: vanilla version: 1.21
Dominant language
Java
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Expected behavior

Pressing F+Q should not create any ghost items.

Observed/Actual behavior

Press F+Q keys simultaneously to create ghost items.

Steps/models to reproduce

I tested it on 1.20.4, 1.20.6, and 1.21 Paper. (All reproducible)
Hold an item with 2 or more item stacks and press F and Q at the same time.
https://youtu.be/wYFs7a5A4d0

Plugin and Datapack List

[15:36:11 INFO]: Server Plugins (0):

Paper version

[15:36:20 INFO]: This server is running Paper version 1.21-27-master@76c2f16 (2024-06-22T18:19:36Z) (Implementing API version 1.21-R0.1-SNAPSHOT)
You are running the latest version

Other

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source file or test is named. Start by reproducing the issue on Paper 1.21 with no plugins while holding two or more item stacks and pressing F and Q together; compare the resulting inventory and world state with separate key presses. Done means simultaneous F+Q no longer creates ghost items.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
game-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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