Pressing Option in Quick Look no longer zooms in on an image

Before Mojave, you could press Option (⌥) while Quick-Looking an image in Finder to view it at 100% scale. In Mojave, this little trick no longer works, and it seems like the only option left is to zoom in using the trackpad (it’s easy to miss the right scale, even though there’s a little delay in zooming when the scale reaches 100%).

Has the Option thing been replaced by some other shortcut? Or did Apple just drop the feature?