Editing an existing smart collection saved with the criterion "Aperture is greater than f /1.0" doesn't properly display "f /1.0" on Mac. It works correctly with values less than 1.0 and greater than or equal to 1.05.
1. Create a smart collection with the criterion "Aperture is greater than f / 1.0".
2. Right-click the smart collection and do Edit Smart Collection. On Mac, observe that the value field is incorrectly blank:
But on Windows, observe that the value field still shows the correct value, f /1.0: