Fixed member status events query
Fixed member status events query

refs https://github.com/TryGhost/Ghost/issues/12602

- Adds aggregate option to permitted options
- Cleans up SQL query to fetch delta values

e10/Ghost,janvt/Ghost,ErisDS/Ghost,TryGhost/Ghost,bitjson/Ghost,ErisDS/Ghost,bitjson/Ghost,TryGhost/Ghost,janvt/Ghost,e10/Ghost,ErisDS/Ghost,TryGhost/Ghost