title: Wix bootstrapper uninstalling MsiPackage instead of updating on update
body: <p>My wix bootstrapper is uninstalling my MSIPackage, but not installing the new version in its place. My log files are attached.</p>
  
  <p>Initial log: <a href="https://drive.google.com/file/d/0B4QDf83juiMDRVphSnpHdUZLdXM/edit?usp=sharing" rel="nofollow">https://drive.google.com/file/d/0B4QDf83juiMDRVphSnpHdUZLdXM/edit?usp=sharing</a></p>
  
  <p>Update log: <a href="https://drive.google.com/file/d/0B4QDf83juiMDTFRJWk9mWGlEd1U/edit?usp=sharing" rel="nofollow">https://drive.google.com/file/d/0B4QDf83juiMDTFRJWk9mWGlEd1U/edit?usp=sharing</a></p>
  
  <p>I am passing the exact same command line parameters to both the initial install and the update. The variables you see in the logs are also supposed to be being set by these command line parameters, but are not. </p>