crm: respect chosen template notification message's content type in event creation dialog.

bt5/erp5_crm/SkinTemplateItem/portal_skins/erp5_crm/Ticket_updateCreateResponseWorkflowActionDialog.xml

@@ -91,6 +91,7 @@ if response_event_notification_message:\n
   request.set(\'your_response_event_notification_message\', \'\')\n
   request.set(\'your_response_event_title\', title)\n
   request.set(\'your_response_event_text_content\', temp_event.getTextContent())\n
+  request.set(\'your_response_event_content_type\', temp_event.getContentType())\n
   request.set(\'your_response_event_resource\', temp_event.getResource())\n
 \n
 return context.Ticket_viewCreateResponseWorkflowActionDialog()\n

bt5/erp5_crm/SkinTemplateItem/portal_skins/erp5_crm/Ticket_viewCreateResponseWorkflowActionDialog/your_response_event_text_content.xml

@@ -182,7 +182,7 @@
       <dictionary>
         <item>
             <key> <string>_text</string> </key>
-            <value> <string>python: context.Ticket_getCausalityValue().Base_getEditorFieldPreferredTextEditor(content_type=context.Ticket_getCausalityValue().Event_getPreferredResponseEventContentType())</string> </value>
+            <value> <string>python: context.Base_getEditorFieldPreferredTextEditor(content_type=request.get(\'your_response_event_content_type\') or context.Ticket_getCausalityValue().Event_getPreferredResponseEventContentType())</string> </value>
         </item>
       </dictionary>
     </pickle>