Q: iPhoto 9.6 Repair Permissions Issue

Hi,

I recently upgraded to Yosemite, at which point I was forced to upgrade to iPhoto 9.6.  Just some pertinent info upfront.  My wife and I have separate user accounts on our iMac.  Both our iTunes and iPhoto libraries are shared at /users/Shared. 

After the upgrade, and the first time I opened iPhoto, I saw a message saying "Examining photo library...", and after a short period, another message pops up saying "There is a problem accessing one or more files in your iPhoto library.  Do you want iPhoto to repair permissions for this library for you?", to which I replied by hitting the "Repair" option.  Eventually all (at least I think all) of our photo thumbnails populated. 

If I close iPhoto, and re-open from the same user account, I don't see the message anymore.  If I close iPhoto, and re-open in the other user account, the same thing happens.  If I submit to repairing again, then again, the photos populate.  If I close iPhoto, and switch back to the other user account, again it's the same problem.

Has anybody else seen this behavior with the same shared setup? I don't know if putting your iPhoto library in a shared location was ever an officially supported feature.  I'm just ticked off b/c it's been working fine for 8 years and my wife is giving me the "told you so" b/c there's always something that falls out of an upgrade.

Thanks in advance.