title: Firebase v9 auth.currentUser is null after creating the user
body: <p>Here's my JS code:</p>
  <pre><code>import { ref } from &quot;vue&quot;
  import { projectAuth } from '../firebase/config'
  import { getAuth, createUserWithEmailAndPassword, updateProfile } from 'firebase/auth'
  
  const error = ref(null)
  const isPending = ref(false)
  
  const signup = async(email, password, displayName) =&gt; {
      error.value = null
      isPending.value = true
  
      try {
          const res = createUserWithEmailAndPassword(projectAuth, email, password)
          console.log(projectAuth.currentUser)
  
          if (!res) {
              console.log('Could not complete the signup')
              throw new Error('Could not complete the signup')
          }
  
          console.log(projectAuth.currentUser)
          await updateProfile(projectAuth.currentUser, {displayName})        
          error.value = null
          isPending.value = false
  
          return res
          
      } catch(err) {
          console.log('ERROR: ' + err.message)
          error.value = err.message
          isPending.value = false
      }
  }
  
  const useSignup = () =&gt; {
      return {error, signup, isPending}
  }
  
  export default useSignup
  </code></pre>
  <p>My Vue3 application is calling the signup function in this script whenever a user is signing up. The createUserWithEmailAndPassword function is successful and the user shows up in firebase. But I want to also add a display name to my user, so I'm trying to use the updateProfile function to do that but there's a problem.</p>
  <p>The problem is the projectAuth.currentUser is null even after creating the user and I can't figure out why??</p>