Wp-calypso: Inaccurate messaging for subdomains: "X domains are not offered on WordPress.com"

[ehti]

If you try to map a subdomain, e.g. sub.domain.com, it'll say ".com domains are not offered on WordPress.com".

Steps to reproduce

1. Starting at URL: wordpress.com/domains/add/
2. Type in a subdomain, e.g. sub.domain.net or .com

What I expected

To not get a message that tells me the TLD isn't offered.

What happened instead

It tells me .COM, .NET, rather any TLD is not offered on WordPress.com.

Browser / OS version

Chrome, latest

Screenshot / Video

Context / Source

dogfooding #manual-testing

[klimeryk]

Yeah, it's something probably introduced in https://github.com/Automattic/wp-calypso/pull/20654 (or at least not improved by it ;)). cc @aidvu @delputnam

[delputnam]

Fixes for this pending review in #21452 and D9250-code.

[rachelmcr]

Closing as this issue was resolved per the above fixes.