I've just updated to the new Photos app on OS X and migrated my iPhoto library to the new app. While getting used to all the changes, I've noticed a problem: it seems that the Last Import album is stuck in the iPhoto Events folder for some reason. (Does the iPhoto database consider Last Import to be an "event"?)
I can tell that the lone album is Last Import because:
I've moved all other albums out of the folder, but it still says that there is one album left inside, even though the view shows that it is empty inside.
When I go back to the top-level album view, the iPhoto Events folder is shown to contain one album thumbnail unlike the inside view. The thumbnail within the folder matches the thumbnail of Last Import.
When I move photos out of Last Import and import a different set of photos, both thumbnails update.
Now here's the bigger problem: if I delete the iPhoto Events folder now, I will lose the Last Import album permanently with no apparent way to get it back through the UI or the application's preferences. (I imagine I can get it back by editing either the app's plist in
~/Library/Containers/com.apple.Photos/Data/Library/Preferences or one or more files in the package, but I'm not sure where to look.)
importing new photos to see if Last Import will reappear, but it doesn't.
repairing the Photos library using the same method as iPhoto (hold Command ⌘ and Option ⌥ when opening the app), but it doesn't help.
repairing the iPhoto library before migrating to Photos, but it doesn't help either.
undoing the deletion, but it just brings back both Last Import and the iPhoto Events folder.
I have re-imported the original iPhoto library for now so that its original state is preserved. What can I do to separate Last Import from the iPhoto Events folder so I can safely remove the latter?