I just went straight to 1.7.3 TortoiseSVN and upgraded my local repo, and continued with the cleanup I've been doing today. I was renaming the "ItemBehaviors" folder to "Behaviors" (since they don't necessarily have to apply to an "item") and although SVN did the delete, it did not do the integrate/add part, which I didn't notice until after submitting. Just wanted to give a heads up to be suspicious/careful with any SVN rename ops with our repo lately. Don't know if this applied to 1.7.2 as I skipped that version.
(I'll bring the behaviors back.)