INITIAL: HASH(0x7fd539802ee8)
CACHED:  HASH(0x7fd539802ee8)
cat
CHANGE1: HASH(0x7fd539802ee8)
CACHED:  HASH(0x7fd539802ee8)
mouse
CHANGE2: HASH(0x7fd539829c38)
CACHED:  HASH(0x7fd539829c38)
rat