title: Jenkins gerrit trigger not fetching my change while building
body: <p>I have configured jenkins with gerrit trigger plugin to validate every commit we push to gerrit.
  I am expecting this trigger to include my latest change with original repo and make a build.
  But, it is cloning only repo project and compiling without my change.</p>
  
  <p>Below is my configuration settings for gerrit trigger in jenkins.</p>
  
  <pre><code>Refspec: $GERRIT_REFSPEC 
  Branches to build: $GERRIT_BRANCH 
  Build trigger: Gerrit event 
  Trigger on: patch set created 
  Gerrit project: added project and branch
  </code></pre>
  
  <p>Below is the build output message</p>
  
  <pre><code>Triggered by Gerrit: http://ci-test1/22
  Building on master in workspace /var/lib/jenkins/jobs/Build_Adserver_4.7/workspace
  Checkout:workspace / /var/lib/jenkins/jobs/Build_Adserver_4.7/workspace - hudson.remoting.LocalChannel@733aee56
  Using strategy: Default
  Last Built Revision: Revision 701a75ef38aa191ac1b806c48e6b3451671888f6 (ads/4.7)
  Fetching changes from 1 remote Git repository
  Fetching upstream changes from abc
  Commencing build of Revision 701a75ef38aa191ac1b806c48e6b3451671888f6 (ads/4.7)
  Checking out Revision 701a75ef38aa191ac1b806c48e6b3451671888f6 (ads/4.7)
  [workspace] $ /bin/sh -xe /tmp/hudson1375188638196718521.sh
  + echo 'Started Build'
  Started Build
  + echo ..................
  ..................
  + echo 'Build Finished'
  Build Finished
  Finished: SUCCESS
  </code></pre>
  
  <p>Here 701a75ef38aa191ac1b806c48e6b3451671888f6 is HEAD of repo branch and 8cbda558adcad4fb7eb714e0b3fb98a6fbf5811c is the SHA-id of my latest change trigged the build.</p>
  
  <p>I verified from jenkins workspace also, it doesn't include my change.</p>
  
  <p>sorry if I am missing any information to mention. Please let me know
  please help me if I am missing anything here.</p>