Protection may be nil

[steigr]

ERROR: logging before flag.Parse: F0222 18:00:24.402236   77065 main.go:57] 24 error(s) decoding:

* 'domain[0].contact[admin].Protection' expected type 'int', got unconvertible type 'string'
* 'domain[0].contact[billing].Protection' expected type 'int', got unconvertible type 'string'
* 'domain[0].contact[registrant].Protection' expected type 'int', got unconvertible type 'string'
* 'domain[0].contact[tech].Protection' expected type 'int', got unconvertible type 'string'

But when i change the type to string and dump the result it's "1":

...
(string) (len=7) "billing": (goinwx.Contact) {
  ...
  Protection: (string) (len=1) "1"
}
...

goinwx/domain.go

Line 149 in cfddb69

Protection int