Only display banner if email has changed

app/controllers/users_controller.rb

@@ -65,7 +65,7 @@ class UsersController < ApplicationController
       if @user == current_user
         bypass_sign_in @user
         flash[:notice] = I18n.t("devise.passwords.updated") if user_params.key?("password")
-        if user_params.key?("email")
+        if user_params.key?("email") && user_params[:email] != @user.email
           flash[:notice] = I18n.t("devise.email.updated", email: @user.unconfirmed_email)
         end
 
@@ -83,7 +83,7 @@ class UsersController < ApplicationController
           @user.reactivate!
           @user.send_confirmation_instructions
           flash[:notice] = I18n.t("devise.activation.reactivated", user_name:)
-        elsif user_params.key?("email")
+        elsif user_params.key?("email") && user_params[:email] != @user.email
           flash[:notice] = I18n.t("devise.email.updated", email: @user.unconfirmed_email)
         end
 

spec/requests/users_controller_spec.rb

@@ -1854,6 +1854,20 @@ RSpec.describe UsersController, type: :request do
               patch "/users/#{other_user.id}", headers:, params:
             end
           end
+
+          context "and email address hasn't changed" do
+            let(:params) { { id: user.id, user: { name: new_name, email: other_user.email, is_dpo: "true", is_key_contact: "true" } } }
+
+            before do
+              user.legacy_users.destroy_all
+            end
+
+            it "shows flash notice" do
+              patch("/users/#{other_user.id}", headers:, params:)
+
+              expect(flash[:notice]).to be_nil
+            end
+          end
         end
 
         context "when we update the user password" do