Why did this change go through? https://gerrit.omnirom.org/#/c/6738/
It seems we can now only flash signed zip files. If I (before this change) leave zip verification enabled and try to flash an unsigned zip, it will fail. Now we have no option. I'm all for having it enabled by default, but this change makes it impossible to disable. As far as I'm aware, we can self-sign a zip and there is only an integrity check but it still feels 'wrong' to outright remove the ability to disable it.
Unless I'm wrong and official builds are compiled without TW_OEM_BUILD defined or if I completely misunderstood the change.