title: Jenkins Git SCM Polling stops when the job for which polling is happening is running
body: <p>We have a job in a jenkins environment which is triggered based on the changes found in the git source code repository. </p>
  
  <p>When the job is running, the git polling log shows nothing and until the job finishes the execution, polling log doesn't have anything on it. </p>
  
  <p>It always shows log after completing the job and another note is that, enable concurrent builds option is not set to make sure only one build runs at a time. </p>
  
  <p>I would like to understand whether it is a known behavior on jenkins front to halt polling when the job is running and whether the concurrent builds option is enabled or not?</p>