The manifest file problem: what happens there?

With the build system, once we generate a build, we create a patch of it. There's a couple different files that are associated with that patch that basically tell the patcher how to patch from where you are to where you need to go to. When we upload stuff to the CDN, we need to make sure that all of those files are there and that they're actually generated. We found that there was actually a bug in the patch building system that didn't generate the right to-from patch. So we had to, after the fact, fix that, and that's what ended up solving that issue. But we found a bug in the system. I mean, it was deep down in there; we had no idea it was there until we ran an automated promotion system that we had just developed this week.