Catch null return value and report missing key instead of running into "Liquid Exception: undefined method `empty?' for nil:NilClass in"
Catch null return value and report missing key instead of running into "Liquid Exception: undefined method `empty?' for nil:NilClass in"

denniss/jekyll-multiple-languages-plugin,screeninteraction/jekyll-multiple-languages-plugin,Anthony-Gaudino/jekyll-multiple-languages-plugin,Anthony-Gaudino/jekyll-multiple-languages-plugin,denniss/jekyll-multiple-languages-plugin,denniss/jekyll-multiple-languages-plugin,glg/jekyll-multiple-languages-plugin,glg/jekyll-multiple-languages-plugin,screeninteraction/jekyll-multiple-languages-plugin,screeninteraction/jekyll-multiple-languages-plugin,Anthony-Gaudino/jekyll-multiple-languages-plugin