Thanks for the Bug ID, I'll pass it onto our storage engineers.

Here is the output of qtree stats from a cDOT ONTAP 8.2.3 vserver:

# cm1 qtree stats volume1
Vserver    Volume        Qtree        NFS Ops      CIFS Ops
---------- ------------- ------------ ------------ ----------
vserver1 volume1 "" 18 0
vserver1 volume1 qtree1 55579 0
vserver1 volume1 qtree2 13162860 0
vserver1 volume1 qtree3 52326001 0
vserver1 volume1 qtree4 34880152 0
5 entries were displayed.

I obsfuscated the cluster/vserver/volume/qtree names. The data looks proper to me, am I missing something?