fix: logic from unit tests

Author: sshaplygin

fts/tax_departs.go

@@ -1632,6 +1632,9 @@ var SupportedTaxDepartments = map[ConstitutionRegionCode]TaxDepart{
 func init() {
 	supportedRegionsCodes = make([]ConstitutionRegionCode, 0, len(SupportedTaxDepartments))
 	for region := range SupportedTaxDepartments {
+		if _, ok := SupportedRegionsCodes[region]; !ok {
+			continue
+		}
 		supportedRegionsCodes = append(supportedRegionsCodes, region)
 	}
 }

inn/models.go

@@ -124,6 +124,7 @@ func NewINN(innType INNType) *INNStruct {
 		taxRegionCode: taxRegionCode,
 		serialNumber:  serialNumber,
 		checkSums:     GenerateCheckSums(innType, append(taxRegionCode.Ints(), serialNumber.Ints()...)),
+		t:             innType,
 	}
 }