title: How to access attached file from workflow transition screen in jira (groovy)
body: <p>In a workflow transition I have a screen with an "attach file" input. In the post-function I want to access the attached file (if any) and create another issue with this file as attachment.</p>
  
  <p>I tried to achieve this via the ServletActionContext.getRequest() but I can't seem to get the uploaded file this way. The HttpServletRequest does not have the getPart() function.</p>
  
  <p>Is there an official way to access attached files from post-functions?</p>
  
  <p>Many thanks in advance</p>