Fixes #3981 - Draft Sharing: Draft stays after new ticket creation.

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

@@ -181,7 +181,8 @@ class App.TicketCreate extends App.Controller
   show: =>
     @navupdate("#ticket/create/id/#{@id}#{@split}", type: 'menu')
     @autosaveStart()
-    @controllerBind('ticket_create_rerender', (template) => @renderQueue(template))
+    @controllerBind('ticket_create_rerender',           (template) => @renderQueue(template))
+    @controllerBind('ticket_create_shared_draft_saved',       @sharedDraftSaved)
     @controllerBind('ticket_create_import_draft_attachments', @importDraftAttachments)
 
     # initially hide sidebar on mobile
@@ -192,6 +193,7 @@ class App.TicketCreate extends App.Controller
   hide: =>
     @autosaveStop()
     @controllerUnbind('ticket_create_rerender', (template) => @renderQueue(template))
+    @controllerUnbind('ticket_create_shared_draft_saved')
     @controllerUnbind('ticket_create_import_draft_attachments')
 
   changed: =>
@@ -305,6 +307,11 @@ class App.TicketCreate extends App.Controller
       error: ->
         App.Event.trigger(options.callbackName, { success: false })
 
+  sharedDraftSaved: (options) =>
+    @el
+      .find('.ticket-create input[name=shared_draft_id]')
+      .val(options.shared_draft_id)
+
   updateTaskManagerAttachments: (attribute, attachments) =>
     taskData = App.TaskManager.get(@taskKey)
     return if _.isEmpty(taskData)

app/assets/javascripts/app/controllers/ticket_zoom.coffee

@@ -1016,6 +1016,7 @@ class App.TicketZoom extends App.Controller
       data: JSON.stringify(params)
       success: (data, status, xhr) =>
         App.Collection.loadAssets(data.assets)
+        App.Event.trigger 'ui::ticket::shared_draft_saved', { ticket_id: @ticket_id, shared_draft_id: data.shared_draft_id }
         @draftFetched()
       error: =>
         @draftFetched()

app/assets/javascripts/app/controllers/ticket_zoom/article_new.coffee

@@ -80,6 +80,7 @@ class App.TicketZoomArticleNew extends App.Controller
     )
 
     @controllerBind('ui::ticket::import_draft_attachments', @importDraftAttachments)
+    @controllerBind('ui::ticket::shared_draft_saved',       @sharedDraftSaved)
 
     # add article attachment
     @controllerBind('ui::ticket::addArticleAttachent', (data) =>
@@ -659,6 +660,13 @@ class App.TicketZoomArticleNew extends App.Controller
       error: ->
         App.Event.trigger(options.callbackName, { success: false })
 
+  sharedDraftSaved: (options) =>
+    return if @ticket.id != options.ticket_id
+
+    @el
+      .find('input[name=shared_draft_id]')
+      .val(options.shared_draft_id)
+
   actions: ->
     actionConfig = App.Config.get('TicketZoomArticleAction')
     keys = _.keys(actionConfig).sort()

app/assets/javascripts/app/controllers/widget/shared_draft.coffee

@@ -66,6 +66,7 @@ class App.WidgetSharedDraft extends App.Controller
 
   success: (data, status, xhr) =>
     App.Collection.loadAssets(data.assets)
+    App.Event.trigger 'ticket_create_shared_draft_saved', { shared_draft_id: data.shared_draft_id }
     @render()
 
   highlightError: ->

spec/system/ticket/shared_draft_start_spec.rb

@@ -31,6 +31,16 @@ RSpec.describe 'Ticket Shared Draft Start', type: :system, authenticated_as: :au
     click '.settings.add'
   end
 
+  shared_examples 'shared draft ID is present' do
+    it 'sets shared draft ID' do
+      within :active_content do
+        elem = find('.ticket-create input[name=shared_draft_id]', visible: :all)
+
+        expect(Ticket::SharedDraftStart).to be_exist(elem.value)
+      end
+    end
+  end
+
   context 'sidebar' do
     context 'given multiple groups' do
       let(:another_group) { create(:group, shared_drafts: false) }
@@ -96,6 +106,18 @@ RSpec.describe 'Ticket Shared Draft Start', type: :system, authenticated_as: :au
           .by 1
       end
     end
+
+    context 'draft saved' do
+      before do
+        within :draft_sidebar do
+          find('.js-name').fill_in with: 'Draft Name'
+
+          click '.js-create'
+        end
+      end
+
+      include_examples 'shared draft ID is present'
+    end
   end
 
   context 'update' do
@@ -207,6 +229,8 @@ RSpec.describe 'Ticket Shared Draft Start', type: :system, authenticated_as: :au
       end
     end
 
+    include_examples 'shared draft ID is present'
+
     it 'applies body' do
       within :active_content do
         expect(page).to have_text draft_body

spec/system/ticket/shared_draft_zoom_spec.rb

@@ -32,6 +32,16 @@ RSpec.describe 'Ticket Shared Draft Zoom', type: :system, authenticated_as: :aut
     visit "ticket/zoom/#{ticket.id}"
   end
 
+  shared_examples 'shared draft ID is present' do
+    it 'sets shared draft ID' do
+      within :active_content do
+        elem = find('.article-add input[name=shared_draft_id]', visible: :all)
+
+        expect(Ticket::SharedDraftZoom).to be_exist(elem.value)
+      end
+    end
+  end
+
   context 'buttons' do
     context 'when drafts disabled for the group' do
       let(:group_shared_drafts) { false }
@@ -169,6 +179,17 @@ RSpec.describe 'Ticket Shared Draft Zoom', type: :system, authenticated_as: :aut
       expect(draft.reload.new_article[:body]).to match %r{another reply}
     end
 
+    context 'draft saved' do
+      before do
+        find('.articleNewEdit-body').send_keys('Some reply')
+
+        click '.js-openDropdownMacro'
+        click :draft_save_button
+      end
+
+      include_examples 'shared draft ID is present'
+    end
+
     context 'draft loaded' do
       before do
         visit "ticket/zoom/#{ticket_with_draft.id}"
@@ -214,6 +235,8 @@ RSpec.describe 'Ticket Shared Draft Zoom', type: :system, authenticated_as: :aut
       end
     end
 
+    include_examples 'shared draft ID is present'
+
     it 'applies new article body' do
       expect(page).to have_text draft_body
     end