By the way, I have been storing all my photos in a couple of managed Aperture libraries. This recent issue with GX7 had led me to re-think my photo management/storage strategy. My current thinking is to move the photos out of Aperture libraries and store them in a referenced folder so that I can use both Aperture and Lightroom to access them. Any comments on that?
There's no problem I'm aware of in having some photos managed and others referenced. If/when Aperture get's its GX7 raw decoding fixed to your liking, you can always move them back into managed.
Just remember, if files are referenced, Aperture won't back them up in a vault, if you're using vaults.