--folder option exports no photos on macOS 26.4 (Tahoe) / Photos DB version 5001

## Bug Description The `--folder` option in `osxphotos export` finds no photos to export on macOS 26.4 (Tahoe) with Photos database version 5001, even though `osxphotos query --folder` correctly returns the expected number of photos. ## Steps to Reproduce 1. Run query to confirm photos exist in folder: osxphotos query --folder "Drone" --count → Returns: 271 2. Run export with same folder filter: osxphotos export ~/Desktop/test_ordner --folder "Drone" --update \ --directory "{folder_album}" --sidecar xmp --live \ --download-missing --filename "{original_name}" --verbose → Returns: "Did not find any photos to export" ## Expected Behavior 271 photos exported into subfolder structure under ~/Desktop/test_ordner/ ## Actual Behavior "Did not find any photos to export" — zero files copied. ## Additional Observations - `--album "AlbumName"` works correctly for single albums - `osxphotos query --folder "Drone"` correctly returns 271 - Deleting .osxphotos_export.db and retrying does not help - Tested with both `--update` and without ## Environment - osxphotos version: 0.75.6 - Python version: 3.14.3 - macOS version: 26.4.0 (Tahoe) - Photos database version: 5001 (11.1) - Platform: arm64 (Apple Silicon)