Prioritize exact PR numbers in checkout picker

[Copilot]

The checkout picker could rank a fuzzy title match above an exact PR number, preselecting the wrong pull request.

Changes

• Matching: Preserve the #number title display while explicitly focusing the listed pull request whose number exactly matches the input. Clear that focus when the input is no longer an exact match.
• Coverage: Add a regression test for the conflicting-number scenario and exact-number input variants.

const exactNumberMatch = findExactPullRequestNumberMatch(value, prItems);
quickPick.activeItems = exactNumberMatch ? [exactNumberMatch] : [];

• Fixes "Checkout Pull Request by Number" should match the exact PR number #8881

[azure-pipelines]

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[Alex Ross (alexr00)]

No need to break things into separate files like this.

[Alex Ross (alexr00)]

Don't add new files

[Alex Ross (alexr00)]

Copilot, don't add those new files. Just modify existing files.

[Copilot]

Copilot, don't add those new files. Just modify existing files.

Addressed in 29f800e. The formatter and regression test now live in existing files, and both added files were removed.

[Alex Ross (alexr00)]

Copilot Having just the number as the label is uglier. Is there a way to prioritize the number without changing the display?

[Copilot]

Copilot Having just the number as the label is uglier. Is there a way to prioritize the number without changing the display?

Implemented in 25bc922. The picker keeps the original #number title display and explicitly activates a listed PR when its number exactly matches the input.

[Copilot]

Pull request overview

This PR addresses an issue in the “Checkout Pull Request by Number” QuickPick where fuzzy matching could cause the wrong PR to be preselected when the typed value is an exact PR number but also appears in another PR title.

Changes:

• Introduces findExactPullRequestNumberMatch and wires it into the checkout QuickPick to focus the exact PR-number match on value changes.
• Adds a regression test covering the “digits in another PR title” scenario.
• Adds QuickPick event subscription cleanup for the new onDidChangeValue handler.

Show a summary per file

File	Description
src/commands.ts	Adds exact-number matching helper and updates the checkout QuickPick to prioritize an exact PR-number match.
src/test/extension.test.ts	Adds a regression test for the exact-number match helper.

Review details

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• Files reviewed: 2/2 changed files
• Comments generated: 3
• Review effort level: Lite