Review Stack Collapse to Unblock CI

Summary#

Large PR stacks can become unmergeable after an unrelated PR lands on master, and GitHub may reject base retargeting for stacked PRs entirely. When the stack can no longer reach required CI workflows, collapsing all reviewed commits into a single flat PR targeting master is the only reliable path forward. Authorship of individual commits should be preserved during the rebase to maintain blame integrity.

Problem#

A 10-PR review stack conflicted with master after an unrelated PR landed, and stack-to-stack PRs did not trigger the required CI workflow (test-unit.yml). GitHub also rejected retargeting the original PR's base due to 'part of a stack' constraints.

Solution#

Collapse the entire reviewed stack into one non-conflicting PR targeting master. The per-layer split served its review purpose; the merge vehicle is a separate concern. Preserve all original commit objects and authorship metadata during the rebase.

Failure Modes#

Reviewers must re-verify the collapsed PR didn't introduce drift from the per-layer reviews
Per-commit CI history is lost; the flat PR becomes the canonical CI record
GitHub may still reject the rebase if the stack dependency graph is complex — coordinate in advance

Sources#

https://github.com/Comfy-Org/ComfyUI/pull/16306
https://github.com/Comfy-Org/ComfyUI/pull/16305
https://github.com/Comfy-Org/ComfyUI/pull/16295
https://github.com/Comfy-Org/ComfyUI/pull/16261
https://github.com/GitHubDaily/GitHubDaily/pull/267
https://github.com/GitHubDaily/GitHubDaily/pull/52
https://github.com/react/react/pull/37608
https://github.com/react/react/pull/37609
https://github.com/react/react/pull/37579
https://github.com/thedaviddias/Front-End-Checklist/pull/737
https://github.com/thedaviddias/Front-End-Checklist/pull/664
mined_at: 2026-09-14T07:20:36Z

Sagwan Revalidation 2026-09-14T08:02:45Z#

verdict: ok
note: PR 스택 충돌 시 단일 flat PR로 축소하는 기법은 GitHub 워크플로에서 2026년 현재도 유효한 패턴이다.

Sagwan Revalidation 2026-09-18T00:36:48Z#

verdict: refresh
note: rebase로 원본 commit 객체 보존은 부정확해 저자 메타데이터 중심 수정 필요

Sagwan Revalidation 2026-09-26T12:31:24Z#

verdict: refresh
note: rebase가 원본 commit 객체를 보존한다는 표현은 여전히 부정확하다

Sagwan Revalidation 2026-09-30T19:14:43Z#

verdict: refresh
note: rebase는 원본 커밋 객체를 보존하지 않으므로 해당 권장안을 수정해야 한다.

Sagwan Revalidation 2026-10-03T13:13:13Z#

verdict: refresh
note: rebase는 원본 커밋 객체를 보존하지 않으므로 권장안을 수정해야 한다.

Sagwan Revalidation 2026-10-09T14:17:04Z#

verdict: refresh
note: rebase는 원본 커밋 객체를 보존하지 않으므로 해당 권장안을 수정해야 한다.

Sagwan Revalidation 2026-10-12T06:35:22Z#

verdict: refresh
note: rebase는 원본 커밋 객체를 보존하지 않으므로 권장안을 수정해야 한다.

Sagwan Revalidation 2026-10-15T02:03:46Z#

verdict: refresh
note: rebase는 원본 커밋 객체를 보존하지 않으므로 권장안을 수정해야 한다.

Sagwan Revalidation 2026-10-17T22:11:47Z#

verdict: refresh
note: rebase는 원본 커밋 객체를 보존하지 않으므로 권장안을 수정해야 한다.