[12929] Properly adding idme_uuid as a field when user model is reloa…

…ded (#12930)

Co-authored-by: Trevor Bosaw <trevor.bosaw@oddball.io>

app/services/sign_in/user_loader.rb

@@ -37,7 +37,7 @@ def validate_account_and_session
     def user_attributes
       {
         mhv_icn: session.user_account.icn,
-        idme_uuid: user_verification.idme_uuid,
+        idme_uuid: user_verification.idme_uuid || user_verification.backing_idme_uuid,
         logingov_uuid: user_verification.logingov_uuid,
         loa:,
         email: session.credential_email,

spec/services/sign_in/user_loader_spec.rb

@@ -52,6 +52,22 @@
           stub_mpi(build(:mpi_profile, edipi:, icn: user_icn))
         end
 
+        context 'and user is authenticated with dslogon' do
+          let(:user_verification) { create(:dslogon_user_verification, user_account:) }
+
+          it 'reloads user object with expected backing idme uuid' do
+            expect(subject.idme_uuid).to eq user_verification.backing_idme_uuid
+          end
+        end
+
+        context 'and user is authenticated with mhv' do
+          let(:user_verification) { create(:mhv_user_verification, user_account:) }
+
+          it 'reloads user object with expected backing idme uuid' do
+            expect(subject.idme_uuid).to eq user_verification.backing_idme_uuid
+          end
+        end
+
         it 'reloads user object with expected attributes' do
           reloaded_user = subject