class TinyMCE::JsonManifest

def remove_digest(logical_path)
  if digested = @manifest["assets"][logical_path]
    @manifest["assets"][logical_path] = logical_path
    @manifest["files"][logical_path] = @manifest["files"].delete(digested).tap { |f| f["digest"] = nil }
    yield digested, logical_path if block_given?
  end
end