[Bug] Duplicated function in intellisense after `addExtraLib`

Reproducible in vscode.dev or in VS Code Desktop?

• Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• Not reproducible in the monaco editor playground

Monaco Editor Playground Link

https://microsoft.github.io/monaco-editor/playground.html?source=v0.35.0#XQAAAAI_AgAAAAAAAABBqQkHQ5NjdMjwa-jY7SIQ9S7DNlzs5W-mwj0fe1ZCDRFc9ws9XQE0SJE1jc2VKxhaLFIw9vEWSxW3yscw0ujCMH_KmaUY-oS3CKMkOSajRHzMOh275SgQndWdGyFPATHN_jQG5rOFPT-L8kRd7Az7STn-1YydGSUXwZb8WhGo0LTm9LMOTHHaW-VuaVSEvOtnVqiQcdHtSbJ-MXc4sDBPYRWn9llPd7wkQFMjP-1wIbhnirKgcQ6QYJQWrxfa5BkiuTVNdyljIo8gJsjLpnqDCMW2vX2xR9_7xYNQp_SXP3TiWFimDIX7MBNCCrUtv7Nd9PsGeM7tIg-NcKx52fdfiUJveVPjdykEcohN41wWUrSv8oYLJ8Af0x3ExQXC2m0G-b9UaPGF7dlYR039F7NJ9lOEbgZxN7ctjDPUEqzsRJxEzrYKPxox8liDi33QpT9c_SyopAHM4Fb3JbbAibxH5CF4N0IYWmqkV5veef-yegA-hf7_oC_zRsjSABnU_ySaVgA

Monaco Editor Playground Code

// The Monaco Editor can be easily created, given an
// empty container and an options literal.
// Two members of the literal are "value" and "language".
// The editor takes the full size of its container.

monaco.editor.create(document.getElementById("container"), {
	value: "function hello() {\n\talert('Hello world!');\ntrim()}",
	language: "typescript",
});
monaco.languages.typescript.typescriptDefaults.addExtraLib(
            'function trim(s: string):string;',
            'index.d.ts',
          );

Reproduction Steps

hover over trim function in Preview pane. Tooltip will be shown: 'function trim(s: string): string (+1 overload)' (+1 overload) is not expected (since I only defined a single trim function).

Similar thing happens if I type trim( to see autocompletion. It shows like there are 2 overloads of trim function, while actually there's only one.

Actual (Problematic) Behavior

editor behaves like addExtraLib is called twice and shows 2 identical overloads of a function defined in addExtraLib

Expected Behavior

I'd expect a single overload of trim function to exist in autocomplete.

Additional Context

No response