clay: always notify if new read says nonexistent
?< |(?=(~ old-cach-value) ?=(~ new-cach-value))
=/ new-entry=(unit (pair mood (unit (each cage lobe))))
=/ =mood [car [%ud u.aeon.rov] pax]
- ?~ u.old-cach-value
?~ u.new-cach-value
- :: not added
+ :: if new does not exist, always notify
::
- ~
+ `[mood ~]
+ ?~ u.old-cach-value
:: added
::
`[mood `u.u.new-cach-value]
- ?~ u.new-cach-value
- :: deleted
- ::
- `[mood ~]
?: (equivalent-data:ze u.u.new-cach-value u.u.old-cach-value)
:: unchanged
::
