Stacked PR checks unrelated to the topmost PR are skipped
還沒有人認領這個 Issue。
評估
研究方向
首先追蹤已發布 stack 的 CI workflows 是如何被選擇的，並使用兩個影響儲存庫中互不相關區域的堆疊 PR 重現該問題。完成標準是 stack 中的每個 PR 都執行與其自身變更相關的 workflows，包括在最上層 PR 未觸發這些 workflows 時執行較低層的 PR。
由索引模型根據 Issue 內容生成。
描述
What happened
For a stack of pull requests, CI workflows are skipped when they are unrelated to the topmost PR in the stack, even if they are relevant to a lower PR.
Reproduction
- Configure separate CI workflows that run for changes to different parts of the repository.
- Create PR A from the trunk branch with a change that should trigger one of those workflows.
- Create PR B on top of A with an unrelated change that does not trigger that workflow.
- Publish A and B as a stack.
- Observe that the workflow relevant to PR A is skipped because it is unrelated to the topmost PR, PR B.
Expected behavior
Each PR in the stack should run the CI workflows relevant to its own changes.
Actual behavior
CI workflows are selected based on the topmost PR in the stack. Workflows unrelated to that PR are skipped across the stack, including workflows that are relevant to lower PRs.
Example consequence
PR A changes a database migration and should trigger migration tests. PR B adds an unrelated application change on top. If the migration workflow is unrelated to PR B, it is skipped, leaving PR A without the CI coverage relevant to its changes.
This is distinct from #319, where stale or missing merge refs prevent pull request workflows from running at all.
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貢獻指南
從這裡開始
- 先讀完整個 Issue，再讀專案的貢獻指南。
- 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
- Fork 儲存庫，在一個分支上完成修改。
- 送出 Pull Request，並在描述裡引用這個 Issue 編號。
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