Importing photos when using iCloud
When I have "iCloud Photos" option turned on on my iPhone, iOS offloads the originals to iCloud and stores smaller versions on my phone to save storage space.
However, when I want to back these photos up to my mac using the Photos app, it doesn't detect the photos that have been offloaded. I have to view the photo on the iPhone, tap "Edit" and then it actually downloads the photo to my phone. I can then unplug the iPhone from my mac and then plug it back in again and Photos detects the photo so it can be imported.
Surely this is a bug and isn't by design? Am I missing something here?
Thanks.
MacBook, Mac OS X (10.5.4)