What am i missing, there is this generated ts code:

export function instanceOfErrorBrowserLocationChangeRequired(value: object): value is ErrorBrowserLocationChangeRequired {
    return true;
}

So it always returns true which screws up logic since i had this in 1 spot, ofc i can just do it manually but it is still broken. I know it worked in the past, why is it hardcoded with true now? its typescript-client fetch