golang gorm app fails with `Operation only supported in SERIALIZABLEisolation level`

[schoudhury]

Creating a new user on the golang gorm app fails with the following error:

{
  "message": {
    "Severity": "ERROR",
    "Code": "0A000",
    "Message": "Operation only supported in SERIALIZABLEisolation level",
    "Detail": "",
    "Hint": "See https://github.com/YugaByte/yugabyte-db/issues/1199. Click '+' on the description to raise its priority",
    "Position": "",
    "InternalPosition": "",
    "InternalQuery": "",
    "Where": "",
    "Schema": "",
    "Table": "",
    "Column": "",
    "DataTypeName": "",
    "Constraint": "",
    "File": "pg_yb_utils.c",
    "Line": "573",
    "Routine": "YBRaiseNotSupported"
  },
  "status": false
}

[azeemshahzad]

Pull request submitted for this fix (#50). Transaction isolation level is set to SERIALIZABLE at session level at the start of the session.