[xcv58]

Problem and result

Saving snippet B with New Snippet after saving snippet A in the same app session overwrote A instead of adding another entry. Fully quitting and reopening MacTools generates a different draft UUID, allowing the first new snippet after each launch to be added separately; reopening only the Clipboard window does not reset it.

With this change, repeated New Snippet saves create independent entries, and editing an existing snippet preserves its ID.

Changes

• Make ClipboardSnippetDraft.empty a computed property so each new draft gets a fresh UUID instead of reusing one process-wide value.
• Add a regression test that creates two snippets through the same factory as New Snippet, edits the first, and reloads a temporary encrypted SQLite database to verify both entries and their contents remain independent.
• Add an English plugin changelog fragment.

Verification

• Confirmed the regression fails against the original implementation on the duplicate-ID assertion.
• make test TEST_FILTER=ClipboardSavedLibraryTests: 19 tests passed, including the regression.
• make validate-changelog and git diff --check passed.
• A fresh independent reviewer checked the complete change and integration points at bd70b616, with no actionable issues found.

Earlier creation tests supplied id: nil directly and bypassed the faulty factory. The new regression covers that missing creation path using a fake pasteboard, an in-memory key store, and temporary storage.

UI evidence

Not applicable to visual evidence: no views, layouts, styling, localization, accessibility, or interaction handlers changed. The native UI flow was not manually retested; the regression exercises the draft factory used by New Snippet and the controller/persistence path.

Checklist

• Core behavior and relevant risks are verified using existing tests, focused additions, or manual checks; results or limitations are recorded.
• UI evidence is attached where applicable; shared components, themes, localization, and accessibility are respected.
• User-facing documentation and changelog fragments are updated when required.
• Plugin metadata, runtime contracts, action policies, and minimum-host compatibility agree.
• Licensing and third-party notices are complete; no credentials, local configuration, or unrelated generated files are included.

[Copilot]

🟢 Approval recommended

The narrow factory change addresses the shared-ID defect, with focused regression coverage and no unresolved findings.

No open issues 🎉

What changed in this PR

Fixes Clipboard History’s same-session snippet overwrites by generating a fresh UUID for each new draft while preserving existing snippet IDs during editing.

Changes:

• Replaces the shared empty draft with a computed factory.
• Adds regression coverage for independent creation, editing, and persisted contents.
• Adds a user-facing plugin changelog entry.

Tests were not rerun in this review environment because macOS project execution is unavailable. Local verification: make test TEST_FILTER=ClipboardSavedLibraryTests and make validate-changelog.

File	Description
Plugins/​ClipboardHistory/​Tests/​ClipboardSavedLibraryTests.swift	Tests separate snippet creation, edit identity, and persistence.
Plugins/​ClipboardHistory/​Sources/​ClipboardSavedLibrary.swift	Generates a fresh UUID for each empty draft.
changes/​unreleased/​clipboard-new-snippets.md	Documents the snippet overwrite fix.

_{Review effort: Balanced}