title: Install4J Install into different directory selected but ignored on install
body: <p>On windows using Install4j 5.1.12, </p>
  
  <p>This is the scenario:
  1). Successfully Install version 1 of app1 in directory v1
  2). Try install of version 2 of app1 ( same APPid as above) but check  'No, install into a different directory'.
  so that, version 1 remain where it is installed. But, version2 goes to a new directory 'v2'.</p>
  
  <p>Expected : after step 2, I was expecting a new directory called 'v2' created and version2 of the app installed in the new dir 'v2'.</p>
  
  <p>Actual: After step 2, version2 installed on top of version1 in dir 'v1' and no dir 'v2' created.</p>
  
  <p>This used to work in old versions of our app installer. I compared it to the sample apps 'hello' of Install4j 5.1.12. Installer/update options has 'Regular Installer'/ Detect previous installation dir selected in the same way as the 'sample' apps.</p>
  
  <p>Wondering what else to check .</p>
  
  <p>Thanks , let me know if you need some more info.</p>