I got one a few weeks ago that I'm almost certain the ADS returned as 108 bodies, about 1,300 ly out. I was on my way back to civilisation for a CG so couldn't be bothered scanning it but I made a note of the system name. A quick check on the galactic map suggests that nobody else has scanned it yet either, although I count only 98 unique bodies so I'm guessing the rest are ring belts.
If I have time this weekend I might head back out there and give it a proper scanning. If nobody has claimed it first it'll certainly be my biggest First Discovered system, and I'm curious to know how long it'll take to scan.