Optional email entry is considered mandatory

[ouchadam]

Steps to reproduce

1. With a homeserver with a mandatory=false email stage
2. Attempt to create an account
3. Notice the email address must be entered

Synapse config to enable optional email registration step

with an email delegate

account_threepid_delegates:
    email: https://matrix.org

or email section

email:
  smtp_host: '############'
  smtp_port: 587
  smtp_user: '############'
  smtp_pass: '############'
  enable_tls: true
  require_transport_security: true
  notif_from: '############'
  app_name: '############'
  enable_notifs: false
  notif_for_new_users: false
  client_base_url: '############'
  validation_token_lifetime: 15m
  invite_client_location: 'https://matrix.org'

Outcome

What did you expect?

Allow the email to be optionally entered

What happened instead?

The email must be entered

Your phone model

No response

Operating system version

No response

Application version and app store

1.4.34

Homeserver

No response

Will you send logs?

No

Are you willing to provide a PR?

No