Fixes #3713 - Core workflows breaks groups selection for customer panel

app/assets/javascripts/app/controllers/customer_ticket_create.coffee

@@ -33,12 +33,6 @@ class CustomerTicketCreate extends App.ControllerAppContent
     defaults = template['options'] || {}
     handlers = @Config.get('TicketCreateFormHandler')
 
-    groupFilter = App.Config.get('customer_ticket_create_group_ids')
-    if groupFilter
-      if !_.isArray(groupFilter)
-        groupFilter = [groupFilter]
-      @formMeta.filter.group_id = groupFilter
-
     @html App.view('customer_ticket_create')(
       head: 'New Ticket'
       form_id: @form_id

app/models/core_workflow/attributes/group.rb

@@ -13,16 +13,34 @@ class CoreWorkflow::Attributes::Group < CoreWorkflow::Attributes::Base
     end
   end
 
+  def customer_ticket_create_group_ids
+    Setting.get('customer_ticket_create_group_ids')
+  end
+
   def groups
     @groups ||= if @attributes.user.permissions?('ticket.agent')
+                  groups_agent
+                elsif @attributes.user.permissions?('ticket.customer') && @attributes.payload['screen'] == 'create_middle' && customer_ticket_create_group_ids.present?
+                  groups_customer
+                else
+                  groups_default
+                end
+  end
+
+  def groups_agent
     if @attributes.payload['screen'] == 'create_middle'
       @attributes.user.groups_access(%w[create])
     else
       @attributes.user.groups_access(%w[create change])
     end
-                else
-                  Group.where(active: true)
   end
+
+  def groups_customer
+    Group.where(id: customer_ticket_create_group_ids, active: true)
+  end
+
+  def groups_default
+    Group.where(active: true)
   end
 
   def assets(group)

spec/models/core_workflow_spec.rb

@@ -237,6 +237,28 @@ RSpec.describe CoreWorkflow, type: :model do
     end
   end
 
+  describe '.perform - Default - Customer setting customer_ticket_create_group_ids' do
+    let(:action_user) { create(:customer) }
+
+    let!(:group1) { create(:group) }
+    let!(:group2) { create(:group) }
+    let!(:group3) { create(:group) }
+
+    it 'does show group 1' do
+      expect(result[:restrict_values]['group_id']).to include(group1.id.to_s)
+    end
+
+    context 'with customer_ticket_create_group_ids set' do
+      before do
+        Setting.set('customer_ticket_create_group_ids', [group2.id.to_s, group3.id.to_s])
+      end
+
+      it 'does not show group 1' do
+        expect(result[:restrict_values]['group_id']).not_to include(group1.id.to_s)
+      end
+    end
+  end
+
   describe '.perform - Custom - Pending Time' do
     it 'does not show pending time for non pending state' do
       expect(result[:visibility]['pending_time']).to eq('remove')