inputs.nfsclient unable to collect operations beyond read and write

i am looking to collect stats on NFS metadata operations from our clients
with configuration below and full stat without "include_operations" I still only see read and write metrics (and none of the other operations being collected.
 ```
[[inputs.nfsclient]]
    fullstat = true
    include_operations = ["READ","WRITE","READDIRPLUS","READDIR"]
```

