It would be this particular commit: .com/EpicGames/UnrealEngine/commit/a0625fd
It’s Change 3045344 in that list of changes. If you’re not sure how to get this one particular commit, I would suggest downloading the Master branch from the branch dropdown as a whole separate engine installation. This way you’ll be able to keep any of these possibly unwanted changes away from your normal installation, as it can be unstable when not in a full release. I would also suggest making a copy of your project to test this with instead of converting the original.