- diff_file = viewer.diff_file
- url = url_for(params.merge(action: :diff_for_path, old_path: diff_file.old_path, new_path: diff_file.new_path, file_identifier: diff_file.file_identifier))
.nothing-here-block.diff-collapsed{ data: { diff_for_path: url } }
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  %a.click-to-expand Click to expand it.
