So I have this old Bordeaux (1990 Haut Marbuzet) that I bout at an auction. About to stand it so I can try it this coming week-end when I notice that the level of wine in the bottle is really high. Almost touching the cork. I also noticed that the plastic cover that covers he cork is puffing out (cork doesn't seem to be sticking out though). Not sure if that has to do anything with the level of wine. Any idea what I could be looking at? Fake bottle that was filled too much? Wine that's gone bad (not sure why the wine would expand to almost touch the cork)? Or just something odd and the wine might be just fine?