send_reset_password_email get callback from the nonexistent 2nd arguments

[deckyfx]

Realm version: 10.0.0-beta.7

When calling sendResetPasswordEmail, it throw an error

[Tue Jul 07 2020 17:17:11.211]  WARN     Possible Unhandled Promise Rejection (id: 1):
Error: callback must be of type 'function', got (undefined)
_sendResetPasswordEmail@[native code]
http://localhost:8081/node_modules/realm/lib/email_password_provider_client_methods.bundle?platform=ios&dev=true&minify=false&modulesOnly=true&runModule=false&shallow=true:48:39
tryCallTwo@http://localhost:8081/index.bundle?platform=ios&dev=true&minify=false:3353:9
doResolve@http://localhost:8081/index.bundle?platform=ios&dev=true&minify=false:3517:25
Promise@http://localhost:8081/index.bundle?platform=ios&dev=true&minify=false:3376:14
sendResetPasswordEmail@http://localhost:8081/node_modules/realm/lib/email_password_provider_client_methods.bundle?platform=ios&dev=true&minify=false&modulesOnly=true&runModule=false&shallow=true:47:25
...

i think the culprit is here:
email_password_provider_client_methods.js

        return new Promise((resolve, reject) => {
            this._sendResetPasswordEmail(email, (err) => {
                if (err) {
                    reject(err);
                } else {
                    resolve();
                }
            });
        });
    },

if my guess is right, it will call this:

js_email_password_provider.hpp

template<typename T>
void EmailPasswordProviderClientClass<T>::send_reset_password_email(ContextType ctx, ObjectType this_object, Arguments& args, ReturnValue& return_value) {
    args.validate_count(2);

    auto& client = *get_internal<T, EmailPasswordProviderClientClass<T>>(ctx, this_object);

    auto email = Value::validated_to_string(ctx, args[0], "email");
    auto callback = Value::validated_to_function(ctx, args[2], "callback");

    client.send_reset_password_email(email, make_callback_handler<T>(ctx, this_object, callback));
}

it checks if it called with 2 arguments, but then it takes the callback from 2nd arguments array which is undefined, it should be 1st array element

[kneth]

@deckyfx Thank you for reporting. We have a fix in #3043.