Hmm! Looks like the beta upstreamer thinks all the files have been 'touched' and upstreams them all again:

Events Log: "Upstream 20 files: 09.html, 10.html, 11.html, 13.html, 14.html, 15.html, 16.html, 17.html, 18.html, 19.html, 20.html, 21.html, 22.html, 23.html, 25.html, 26.html, 27.html, 28.html, 29.html, 30.html. 12:10:22 AM 165.983"