work: h051-055-merge-medium-scope-override-note-regression

[ExatronOmega]

Summary

• Signposter handoff for issue H051-055 — Merge medium-scope override note regression #585.
• Source branch: work/issue-585-h051-055-merge-medium-scope-override-note-regressi
• Base branch: main

Changed files

• tests/test_merge.py

Safety notes

• Generated by Signposter PR planning surface.
• No merge or issue close is implied by this PR.
• Issue should remain open until explicit integration/close policy.

Related issue: #585

[AlphaExatron]

Signposter reviewer gate: APPROVE

Confidence: 0.91
Risk: high
Scope match: yes
CI considered: yes
Merge recommendation: yes
Automerge eligible: no

Findings:

• The PR is test-only and changes only tests/test_merge.py.
• The new assertions cover medium-scope override notes in both the plan object and formatted merge plan output.
• No merge runtime behavior, GitHub mutation behavior, or issue closure behavior changes.
• Local validation and PR CI are green.

Summary:
Reviewer approved this change.

No merge or issue close is implied by this review.