Fixes #3568 - Duplicated article after bulk action was executed for newly created tickets without a browser refresh in between.

app/assets/javascripts/app/controllers/agent_ticket_create.coffee

@@ -563,6 +563,10 @@ class App.TicketCreate extends App.Controller
     ticket.save(
       done: ->
 
+        # Reset article after ticket create, to avoid unwanted sideeffects at other places.
+        localTicket = App.Ticket.findNative(@id)
+        localTicket.article = undefined
+
         # notify UI
         ui.notify
           type:    'success'

spec/system/ticket/view_spec.rb

@@ -232,7 +232,8 @@ RSpec.describe 'Ticket views', type: :system do
     end
   end
 
-  context 'bulk note', authenticated_as: :user do
+  context 'when performing a Bulk action' do
+    context 'when creating a Note', authenticated_as: :user do
       let(:group)    { create :group }
       let(:user)     { create :admin, groups: [group] }
       let!(:ticket1) { create(:ticket, state_name: 'open', owner: user, group: group) }
@@ -255,6 +256,50 @@ RSpec.describe 'Ticket views', type: :system do
       end
     end
 
+    # https://github.com/zammad/zammad/issues/3568
+    # We need a manual ticket creation to test the correct behaviour of the bulk functionality, because of some
+    #   leftovers after the creation in the the javascript assets store.
+    context 'when performed a manual Ticket creation', authenticated_as: :agent do
+      let(:customer)  { create(:customer) }
+      let(:group)     { Group.find_by(name: 'Users') }
+      let(:agent)     { create(:agent, groups: [group]) }
+      let!(:template) { create(:template, :dummy_data, group: group, owner: agent, customer: customer) }
+
+      before do
+        visit 'ticket/create'
+
+        within(:active_content) do
+          use_template(template)
+
+          click('.js-submit')
+
+          find('.ticket-article-item')
+        end
+      end
+
+      it 'check that no duplicated article was created after usage of bulk action' do
+        click('.menu-item[href="#ticket/view"]')
+
+        created_ticket_id = Ticket.last.id
+
+        within(:active_content) do
+          click("tr[data-id='#{created_ticket_id}'] .js-checkbox-field")
+
+          find('select[name="priority_id"] option[value="1"]').select_option
+
+          click('.js-confirm')
+          click('.js-submit')
+
+          await_empty_ajax_queue
+
+          # Check if still only one article exists on the ticket.
+          click("tr[data-id='#{created_ticket_id}'] a")
+          expect(page).to have_css('.ticket-article-item', count: 1)
+        end
+      end
+    end
+  end
+
   context 'Setting "ui_table_group_by_show_count"', authenticated_as: :authenticate, db_strategy: :reset do
     let!(:ticket1) { create(:ticket, group: Group.find_by(name: 'Users')) }
     let!(:ticket2) { create(:ticket, group: Group.find_by(name: 'Users')) }