monkey patch jekyll/jekyll#6338 backport

jekyll · Sep 5, 2017 · fe0e7df · fe0e7df
1 parent 6f63488
commit fe0e7df
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/lib/jekyll-github-metadata/metadata_drop.rb b/lib/jekyll-github-metadata/metadata_drop.rb
@@ -10,6 +10,13 @@ class MetadataDrop < Jekyll::Drops::Drop
 
       # See https://github.com/jekyll/jekyll/pull/6338
       alias_method :invoke_drop, :[]
+      def key?(key)
+        if self.class.mutable?
+          @mutations.key?(key)
+        else
+          !key.nil? && (respond_to?(key) || fallback_data.key?(key))
+        end
+      end
 
       def to_s
         require "json"