This issue is deriving from https://jira.atlassian.com/browse/CRUC-6312.

One customer mentioned that because Crucible is based on diffs reviews than it is possible to miss some lines of code for an file that has been added and then modified.

In order to help identify those cases we could visually indicate that a file has been added in the revision selector.

To be a satisfactory fix, the default result seen by a reviewer when they first visit a review must tell the reviewer that the file has been added in this review, and must show them the full contents of the file without them needing to adjust any controls.