title: Jenkins doesnt retrieve git references using git parameter plugin
body: <p>Hello I'm trying to configure our jenkins build server to use git branches.</p>
  
  <p>My configuration looks like this:</p>
  
  <p><img src="https://i.stack.imgur.com/R6kIN.png" alt="git plugin"></p>
  
  <p>Well if I click on build with parameters I get a empty list like this:</p>
  
  <p><img src="https://i.stack.imgur.com/ByDj7.png" alt="git listing"></p>
  
  <p>I have build this project without parameters and it worked. In the Source-Code-Management part I have added our server with the right creditials without ssh. (only username and password)</p>
  
  <p>However I get no git references in the list. I have googled around and found out that this is a common issue if you use ssh but we dont use ssh. I dont want to make a workaround via Extensible Choice Parameter plugin. </p>
  
  <p>So what is the problem here? I cant believe that this is so hard to configure in jenkins...</p>
  
  <p>We use the latest jenkins version and git parameter plugin with the maven id:
  org.jenkins-ci.tools:git-parameter:0.4.0</p>