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[Bug]: "Merge stack" appears late and pushes the stack picker out from under the cursor

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评估

难度
2/5
预计耗时
1-3 小时
新手友好度
76/100
Issue 类型
缺陷
描述清晰度
描述清楚
活跃度
活跃
技术栈
react, typescript
领域
frontend

调研方向

阅读 apps/web/src/components/pullRequest/PullRequestDetailPanel.tsx 第 1304 行附近和 apps/web/src/components/pullRequest/PullRequestStackMenu.tsx 第 202 行附近的代码。跟踪 stack 查询刷新时 header 的渲染方式,然后比较堆叠 PR 和单个 PR 的控件顺序。当 picker 在加载期间保持原位,且堆叠 PR 的控件遵循一致的顺序时,任务即完成。

由索引模型根据 Issue 内容生成。

描述

Before submitting
  • I searched existing issues and did not find a duplicate.
  • I included enough detail to reproduce or investigate the problem.
Area

apps/web

Steps to reproduce
  1. Open a stacked PR you can merge. Public demo: GisTypical/t3-stack-demo (PRs 1–5 are a stack, PR 7 is a single PR).
  2. Pick another layer from the stack picker (3/5).
  3. Click the stack picker again as soon as it shows.
  4. Merge stack pops in, pushes the picker left, and the click opens the merge confirmation instead. This repeats on every layer switch.
Expected behavior

Header controls don't move while data loads, and stacked PRs use the same order as single PRs.

Actual behavior
View Header order
Single PR [linked threads] [Merge] [Check out] [⋯]
Stacked PR, loading [2/5] [linked threads] [Check out] [⋯]
Stacked PR, loaded [2/5] [Merge stack] [linked threads] [Check out] [⋯]

The picker jumps 105 px left about 0.7 s after a layer switch (1280×800). The linked-threads button also swaps sides of the merge action between single and stacked PRs.

Cause, at e923627:

  • Merge stack only renders once the stack query is fresh (PullRequestDetailPanel.tsx:1304), but the picker renders from cached data. The row is right-aligned, so the late button pushes the picker.
  • PullRequestStackMenu renders Merge stack next to the picker (PullRequestStackMenu.tsx:202) instead of in the Merge slot, which is why the order differs.
Impact

Minor bug or occasional failure

Version or commit

30f4d63 (dev build); the affected files are unchanged on e923627.

Environment

Linux, Chromium, GitHub stacked PRs made with gh stack.

Screenshots, recordings, or supporting files

https://github.com/user-attachments/assets/8aef5f95-79bd-4e75-b04f-45ad603cd77b

Single PR Stacked, loading Stacked, loaded
Single PR header Stacked PR header while loading Stacked PR header once loaded

Merge confirmation opened by the misclick

Proposed fix

Which would you accept?

  1. GitHub's layout: move the stack picker to the left, next to the PR status, and render Merge stack in the Merge slot.
  2. Smaller: render Merge stack in the Merge slot, and keep it mounted but disabled while the stack refreshes.

Both give stacked and single PRs one header order and keep Merge stack disabled until the stack is fresh.

主要语言
TypeScript
星标
24.8k
派生
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平均合并
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