我不明白，為什么firebase.auth().sendSignInLinkToEmail(email, settings)要向尚未注冊的電子郵件地址發送登錄電子郵件。此外，當我然后單擊鏈接，打開我檢查電子郵件的站點時firebase.auth().signInWithEmailLink(email, signInEmailLink)，電子郵件被注冊并且用戶已登錄！我認為那是古玩，因為我已經建立了一個單獨的注冊流程。我希望當我firebase.auth().sendSignInLinkToEmail(email, settings)使用未注冊的電子郵件撥打電話時會收到錯誤消息。我究竟做錯了什么？這是我發送電子郵件并在用戶單擊鏈接時登錄的代碼。async login(email) {    try {        const settings = {            handleCodeInApp: true,            url: encodeURI(`${location.protocol}//${location.host}/#!/user/verifizieren`),        };        await firebase.auth().sendSignInLinkToEmail(email, settings);        window.localStorage.setItem(storageKeyEmail, email);    } catch(error) {        console.error(error);        throw error;    }},async verify(email, link) {    const signInEmailLink = link || window.location.href;    if(!firebase.auth().isSignInWithEmailLink(signInEmailLink)) {        return Promise.reject('auth/link-invalid');    }    try {        await firebase.auth().signInWithEmailLink(email, signInEmailLink);        firebase.auth().currentUser.reload();        firebase.auth().currentUser.getIdToken(true);        window.localStorage.removeItem(storageKeyEmail);    } catch(error) {        console.error(error);        throw error;    }},