DB<1> x $som->valueof('/Envelope/Body/command')
0 HASH(0x1bb793c)
  'message' => HASH(0x1bb793c)
   -> REUSED_ADDRESS
 DB<2> x $som->valueof('/Envelope/Body/command/message')
0 HASH(0x1bb793c)
  'message' => HASH(0x1bb793c)
   -> REUSED_ADDRESS