Import wants to import too many photos

Question

My iPhoto Library contains 6611 photos. I'm attempting to import that same library into a new library in /Users/Shared in which I plan to combine my photos with those in my wife's iPhoto Library.
There seems to be an issue with import. When I try to import my library into the /Users/Shared library, after analyzing the import, iPhoto tells me there are over 13,000 photos to import.
My library has been around since the first days of iPhoto. I've never mangled the file system. I've simply upgraded from one version to the next.
Is this simply a bug? Is there something I can do to get the import to only recognize the 6611 photos in my library.

Answer 1

When specifing a directory during import, it appears as if the import is simply looking for all the pictures and movies under the directory (originals, modified, data, etc.). I counted the pictures under iPhoto Library as follows:
find . -name \*.jpg -o -name \*.JPG | wc
14582 42513 618190
I just tried the same import again. In fact it says it is going to import
14586 pictures and 33 movies.
I'd like import to look at the iPhoto Library data, not just find the pictures and movies. Essentially, right now I need the abilty to append the contents of one library to another, album data and all.