AP-5231: Skip emergency overrides for SCA applications

When a user adds a delegated function date to an SCA application,
they should not see the Emergency override pages

app/services/flow/proceeding_loop.rb

@@ -44,7 +44,7 @@ def next_step
         when "client_involvement_type"
           :delegated_functions
         when "delegated_functions", "confirm_delegated_functions_date"
-          current_proceeding.used_delegated_functions? ? :emergency_defaults : :substantive_defaults
+          current_proceeding.used_delegated_functions? && !current_proceeding.special_childrens_act? ? :emergency_defaults : :substantive_defaults
         when "emergency_defaults"
           current_proceeding.accepted_emergency_defaults ? :substantive_defaults : :emergency_level_of_service
         when "substantive_defaults"

spec/services/flow/proceeding_loop_spec.rb

@@ -45,6 +45,21 @@
           it { is_expected.to be :emergency_defaults }
         end
 
+        context "when the SCA proceeding has used delegated functions" do
+          let(:legal_aid_application) do
+            create(:legal_aid_application,
+                   :with_proceedings,
+                   :with_delegated_functions_on_proceedings,
+                   explicit_proceedings: %i[pb003 pb007],
+                   set_lead_proceeding: :pb007,
+                   df_options:,
+                   provider_step:)
+          end
+          let(:df_options) { { pb003: [10.days.ago, 10.days.ago], pb007: [10.days.ago, 10.days.ago], DA005: [nil, nil] } }
+
+          it { is_expected.to be :substantive_defaults }
+        end
+
         context "and the proceeding has not used delegated functions" do
           it { is_expected.to be :substantive_defaults }
         end