• I have tried restarting my IDE and the issue persists.
• I have updated to the latest version of the packages.
• I have read the FAQ and my problem is not listed.

Repro

        "@typescript-eslint/no-namespace": [
            "error",
            {
                allowDeclarations: true,
            },
        ],

This doesn't produce any warnings if allowDeclarations is true

declare namespace foo {
    namespace bar {
        namespace baz {}
    }
}

This DOES produce a warning if allowDeclarations is true

declare namespace foo {
    export namespace bar {
        namespace baz {}
    }
}

Expected Result

If allowDeclarations is true, then neither should error.

Actual Result

Including export causes the rule to complain.

Additional Info

Versions