title: Redmine Add multiple watchers through rest api
body: <p>I need to create Redmine issues through api. I have an xml draft, that is posted to the redmine by wget.exe. The xml looks like:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;issue&gt;
    &lt;project_id&gt;145&lt;/project_id&gt;
    &lt;tracker_id&gt;10&lt;/tracker_id&gt;
    &lt;category_id&gt;885&lt;/category_id&gt;
    &lt;subject&gt;subj&lt;/subject&gt;
    &lt;description&gt;descript&lt;/description&gt;
    &lt;watcher_user_ids&gt;1333,1614&lt;/watcher_user_ids&gt;
  &lt;/issue&gt;
  </code></pre>
  
  <p>It works almost fine except adding watchers to the issue. According to documentation parameter <code>&lt;watcher_user_ids&gt;</code> contains array of watchers. But I can't make it work for multiple watchers. Somehow it adds only the first one and others are ignored. I've tried to use ";", "," separators, different brackets, but it doesn't help. I guess I'm doing something wrong. Can please anybody help me and show me the right way.  </p>