Splitting a default tuple type across multiple lines breaks highlighting

JavaScript and TypeScript Nightly version: 5.6.0-dev.20240819

Splitting a tuple across multiple lines, which is used as the default type for a parameter on a method in an interface or class in a declaration file (.d.ts), breaks syntax highlighting below that line.

Code

// Please include a code snippet that demonstrates the issue
export interface Broken {
    a<A extends [number] = [
        number
    ]>(value: number): boolean;

    b(value: number): string;
}

export interface Other {
    constructor(name: string);
}

Broken:

Working:

Start by reproducing the issue with the provided TypeScript declaration snippet and inspect the TypeScript TextMate grammar rules involved in multiline tuple defaults. Done means syntax highlighting remains correct below the split tuple, including the following interface and constructor.