What is the relevant ticket/issue

• Reported on Discord

What's this PR do?

After a Feed has been saved and a user clicks Test it uses the literal <redacted> value as API key.

Add

• Check for existing ID, then check if it's a redacted value, if yes set api key and cookie

Where should the reviewer start?

• First file

How should this be manually tested?

• Create a Feed, click Test it should work, then open with edit and click test button again and it should work

Risk involved?

• Low

Does the documentation or dependencies need an update?

• No