title: Reset the REINSTALL and REINSTALLMODE flags for major upgrade
body: <p>I have an NSIS script that uses the command line:</p>
  
  <p><code>msiexec.exe /i installer.msi REINSTALL=ALL REINSTALLMODE=vdmus</code></p>
  
  <p>The msi is built using Wix. This works fine for minor upgrades, but fail for major upgrade. </p>
  
  <p>So I want to know if there is a way in Wix to <strong>reset</strong> the <code>REINSTALL</code> and <code>REINSTALLMODE</code> flags once we detect that we are doing a major upgrade?</p>