#7 naming temp files when doing "diff"

[Albert]

When I do "diff" between a revision "x" and my current file, it is clear in the diff viewer which one is my file and which one the temp file created from the revision I requested. The problem is when I diff two revisions from the log view. I can pick two revisions (instead of a revision and my current file) and the temp files created are named "tmp" and "tmp2", that doesn't help very much to identify the files. I would like that the temp files were named after their revision number, e.g. "tmp-r10" and "tmp-r13" if I am diffing revisions 10 versus 13.