Pvdisplay incorrectly show non metadata area PV's as orphans.

Issue

Even though PV is in VG, pvdisplay incorrectly show non metadata area PV's as orphans.

# vgdisplay -v vg_test | grep loop56
    PV Name               /dev/loop56

# pvdisplay /dev/loop56
  --- NEW Physical volume ---
  PV Name               /dev/loop56
  VG Name
  PV Size               100.00 MB
  Allocatable           NO
  PE Size (KByte)       0
  Total PE              0
  Free PE               0
  Allocated PE          0
  PV UUID               bkuCBt-BUaL-N6iX-u8aX-wHrn-Fopd-8nN7Zq