change message displayed on hhmemb page

app/models/validations/tenancy_validations.rb

@@ -38,7 +38,7 @@ module Validations::TenancyValidations
 
     if record.hhmemb == 1 && record.joint != 2 && record.collection_start_year >= 2022
       record.errors.add :joint, I18n.t("validations.tenancy.not_joint")
-      record.errors.add :hhmemb, I18n.t("validations.tenancy.not_joint")
+      record.errors.add :hhmemb, I18n.t("validations.tenancy.joint_more_than_one_member")
     end
   end
 end

config/forms/2022_2023.json

@@ -946,7 +946,7 @@
               "header": "",
               "description": "",
               "questions": {
-                "joint_tenancy": {
+                "joint": {
                   "check_answer_label": "Is this a joint tenancy?",
                   "header": "Is this a joint tenancy?",
                   "hint_text": "For example, 27 3 2021.",

config/locales/en.yml

@@ -222,6 +222,8 @@ en:
       internal_transfer: "Answer must be secure tenancy as you already told us this tenancy is an internal transfer"
       cannot_be_internal_transfer: "Answer cannot be internal transfer as you already told us this is not a secure tenancy"
       not_joint: "This cannot be a joint tenancy as you've told us there's only one person in the household"
+      joint_more_than_one_member: "There must be more than one person in the household as you've told us this is a joint tenancy"
+      
 
     declaration:
       missing: "You must show the DLUHC privacy notice to the tenant before you can submit this log."

spec/models/validations/tenancy_validations_spec.rb

@@ -151,13 +151,14 @@ RSpec.describe Validations::TenancyValidations do
     context "when the data inputter has said that there is only one member in the household" do
       let(:record) { FactoryBot.create(:case_log, startdate: Time.zone.local(2022, 5, 1)) }
       let(:expected_error) { I18n.t("validations.tenancy.not_joint") }
+      let(:hhmemb_expected_error) { I18n.t("validations.tenancy.joint_more_than_one_member") }
 
       it "displays an error if the data inputter says the letting is a joint tenancy" do
         record.hhmemb = 1
         record.joint = 1
         tenancy_validator.validate_joint_tenancy(record)
         expect(record.errors["joint"]).to include(match(expected_error))
-        expect(record.errors["hhmemb"]).to include(match(expected_error))
+        expect(record.errors["hhmemb"]).to include(match(hhmemb_expected_error))
       end
 
       it "does not display an error if the data inputter says the letting is not a joint tenancy" do