I recently heard a similar story but one important fact in the story that I heard is that the dam was tested in the research phase with a cheek swab..and it was not clear where that swab was collected. If it was done at a field trial(as many were) how certain can they be that the swabs were not mixed up and was it possible that the dog was on a pro's truck and identity was not verified? In the case that I heard about, I believe the dam was going to be re-tested with proof of identity. I haven't heard the results of that re-testing.
I agree that it is very important that the U of M be made aware of those findings. Of course, they are tracking pedigrees so they should already be aware of the findings.
I would agree. If neither sample was mixed up, and the results are conmfirmed for both dogs (And U Minn should do the retesting at their expense!) then the test may not be reliable. That issue needs to be settled.