Fix status of blocked special domains when they are in FTL's DNS cache

[DL6ER]

By submitting this pull request, I confirm the following:

• I have read and understood the contributors guide.
• I have checked that another pull request for this purpose does not exist.
• I have considered, and confirmed that this submission will be valuable to others.
• I accept that this submission may not be used, and the pull request closed at the will of the maintainer.
• I give this submission freely, and claim no ownership to its content.

How familiar are you with the codebase?:

10

---

When querying special domains (such as use-application-dns.net), they are getting logged with status 16 (Blocked (special domain)). However, subsequent queries to the same domain incorrectly get status OK (cached). This PR fixes these subsequent queries to also show status 16. This big is a mere displaying issue, blocking works as expected.

Thanks to @jpgpi250 for pointing this out.

[yubiuser]

The first two are on the development the latter on the current branch