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Bug description

If title: blank is used, then RSS feed from jekyll-feed literally has "blank" as title.

How to reproduce the bug

See https://alshedivat.github.io/al-folio/feed.xml.

al-folio's default behavior is to explicitly construct a different title for the header with title: blank:

But no other jekyll plugin knows this and literally uses "blank" as the title.

Error messages and logs

No response

What operating system are you using?

Linux, Not applicable (e.g. you're using GitHub Pages or other hosting)

Where are you seeing the problem on?

Running locally without Docker, Deployed site

More info

No response