message: Fix private space creation setting an alias anyway
diff: @@ -129,7 +129,9 @@ const SpaceCreateMenu = ({ onFinished }) => {
  events_default: 100,
  ...Visibility.Public ? { invite: 0 } : {},
  },
  - room_alias_name: alias ? alias.substr(1, alias.indexOf(":") - 1) : undefined,
  + room_alias_name: visibility === Visibility.Public && alias
  + ? alias.substr(1, alias.indexOf(":") - 1)
  + : undefined,
  topic,
  },
  spinner: false,
  