SV = PV(0x5602d6441ee0) at 0x5602d6470148    <-- One scalar
  REFCNT = 1
  FLAGS = (POK,IsCOW,pPOK)
  PV = 0x5602d6478030 "abc"\0                <-- String buffer
  CUR = 3
  LEN = 16
  COW_REFCNT = 1
SV = PV(0x5602d6441f00) at 0x5602d6470100    <-- Different scalar
  REFCNT = 1
  FLAGS = (POK,IsCOW,pPOK)
  PV = 0x5602d6478030 "abc"\0                <-- String buffer
  CUR = 3
  LEN = 16
  COW_REFCNT = 2