Change the FileAttachmentComment API to require an "extra_data." prefix for extra data.
Review Request #3498 — Created Nov. 15, 2012 and submitted
Change the FileAttachmentComment API to require an "extra_data." prefix for extra data. Recently, FileAttachmentComment was given support for specifying extra data to store with a comment. This took any unknown variable and stored it as extra data, but that meant that typos would also get stored. Now it requires an "extra_data." prefix for any variables meant to be stored there. That corresponds to the resulting payload, which is a dictionary in 'extra_data'.
Unit tests pass. Tested reviewing an uploaded image. Saving worked, and the comments were loaded properly when reloading the page.