Check default front matter scope against symbols (#8393)
Check default front matter scope against symbols (#8393)

Merge pull request 8393
x-way/jekyll,x-way/jekyll,jekyll/jekyll,x-way/jekyll,jaybe-jekyll/jekyll,chrisfinazzo/jekyll,jekyll/jekyll,fulldecent/jekyll,fulldecent/jekyll,chrisfinazzo/jekyll,x-way/jekyll,jekyll/jekyll,chrisfinazzo/jekyll,ryanshaw/jekyll,fulldecent/jekyll,jekyll/jekyll,ryanshaw/jekyll,jaybe-jekyll/jekyll,fulldecent/jekyll,chrisfinazzo/jekyll,ryanshaw/jekyll,jaybe-jekyll/jekyll,jaybe-jekyll/jekyll,ryanshaw/jekyll