Add failing spec

spec/features/case_log_spec.rb

@@ -388,6 +388,7 @@ RSpec.describe "Test Features" do
         fill_in("case-log-net-income-field", with: income_over_soft_limit)
         choose("case-log-net-income-frequency-weekly-field", allow_label_click: true)
         click_button("Save and continue")
+        expect(page).not_to have_content("For net incomes that fall outside the expected range you must confirm they're correct")
         check("case-log-override-net-income-validation-override-net-income-validation-field", allow_label_click: true)
         click_button("Save and continue")
         expect(page).to have_current_path("/case_logs/#{case_log.id}/net_income_uc_proportion")
@@ -402,6 +403,17 @@ RSpec.describe "Test Features" do
         click_button("Save and continue")
         expect(page).to have_current_path("/case_logs/#{case_log.id}/net_income_uc_proportion")
       end
+
+      it "clears the confirmation question if the page is returned to using the back button" do
+        visit("/case_logs/#{case_log.id}/net_income")
+        fill_in("case-log-net-income-field", with: income_over_soft_limit)
+        choose("case-log-net-income-frequency-weekly-field", allow_label_click: true)
+        click_button("Save and continue")
+        fill_in("case-log-net-income-field", with: income_under_soft_limit)
+        click_button("Save and continue")
+        click_link(text: "Back")
+        expect(page).not_to have_content("For net incomes that fall outside the expected range you must confirm they're correct")
+      end
     end
   end