[WorldMaker]

The post says it was a single global search/replace (probably a grep) operation, plus some automated merge checks. Because most of what was most affected was literally test scripts, almost all of it sounds like it was automated and the vast majority of the "hours wasted" weren't person hours but machine hours.

[mmis1000]

The reviewer still needs to read it one by one if he decides to adopt it. And it is likely to be many hours.