test: add regression test · planetarium/lib9c@2a6f2e0

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/setup-dotnet@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Possible null reference argument for parameter 'value' in 'void Dictionary<string, object>.Add(string key, object value)'.

An opening brace should not be followed by a blank line

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

An opening brace should not be followed by a blank line

An opening brace should not be followed by a blank line

Possible null reference return.

Possible null reference return.

Possible null reference return.

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