Adding field to account settings is ignored when adding a value for it

Using Drupal 8 Beta 1 on Ubuntu 14.04 Linux.

I create a new field for a user's account by doing this:

Manage->Configuration->AccountSettings->ManageFields->
Add new field: "NewField"
FieldType: Text(formatted)
--> Save
Allowed number of values: Limited, 1
Maximum length: 21
--> Save field settings
Label: NewField
Help text: Help me
Required: Check it
Default Value: , (i leave it blank)
Text format: Basic HTML
-->SaveSettings

I then see if a user, the administrator, can edit his profile and add a value for this NewField.
From Home Page--> My Account-->Edit-->NewField: "some data"-->Save

I get a messages of:
"NewField field is required"
(as if I never entered any data, but I did.)

If I use PhpMyAdmin to peruse the MySQL database, I do see this table:
user__field_newfield
It has zero rows of data in it.

[Aside: Previously, I have added a field to the user bundle programmatically, and I have
the same issue. I thought it was cause I did it programmatically, that I did something
wrong, but then I did the manual steps above to see if it would work, but it's
similarly broken.
This used to work during one(or more) of the Drupal Alpha versions. Not
sure exactly which one.
]