When performing a diff on a new file that has multiple revisions, I do not get any differences. It looks like the file has not changed at all, but in reality the entire file content is new.

By restricting the included revisions, I can sort of get understanding what happened, but it is rather difficult to figure out. I should be able to select all changes (on the red line) and see the entire content of the added file as it looks after all the cumulative changes.