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If I got things right, we'll be using this module in the new D7 d.o for listing all files posted in an issue. There's this preview dev site (use drupal/drupal for credentials), but I'm posting a screenshot here anyways just in case the site is taken down.
You'll notice how files from the same issue are listed without being grouped together based on the comment id to which they are attached to. This makes it harder in this example use case to visually associate each interdiff with its corresponding patch file unless you look at the "Comment ID" column searching for matching comment numbers.
I propose that we (optionally perhaps) allow files attached to the same comment to be grouped together. I propose we do that by merging the "Comment ID" table cells that contain the same comment id number.