Avro ParseException when any field contains lowercase string "protocol" followed by a space

[ericluria]

The error:

ERROR 409: Unprocessable Entity
 - org.apache.avro.compiler.idl.ParseException: Encountered " "{" "{ "" at line 1, column 1.
Was expecting one of:
    "protocol" ...
    "@" ...

To recreate, try uploading either of the following specs:

1. Name contains protocol (notice the space)

{
  "name": "protocol ",
  "description": "protocol"
}

or

2. Description contains protocol (notice the space)

{
  "name": "protocol",
  "description": "protocol "
}