intl-tel-input: initial country fixed or auto does not have the same behavior

Steps to reproduce

set field value to something wrong set params to { initialCountry: 'auto', geoIpLookup: function(callback) { callback('us'); } }

Expected behaviour

The selected country should be ‘us’, just as if the params where { initialCountry: 'us' }

Actual behaviour

Country is not filled, therefore cause errors later on .intlTelInput("getNumber")

Initialisation options

all default except specified.