Connection wizard: Image Registry URL is not decorated when not valid (and validation seems weird)

steps 1:

1. ASSERT: have a connection the cdk
2. EXEC: edit the connection and move to "Image Registry URL" text field
3. EXEC: provide some bogus URL (ex. bookaroo-banzai)

Result:
the url is validated and an error appears in the title are, "Finish" is disabled. GOOD.
But the text field is not decorated.

steps 2:

1. EXEC: provide the following URL: http:/bookaroo-banzai

Result:
It thinks that it's valid, there's no error in the title area, "Finish" is enabled
Expected result:
http:/bookaroo-banzai doesnt look valid to me, it should error and disable "Finish"