Merge pull request #2185 from kzantow/JENKINS-33800-initial-password-file-not-found

[JENKINS-33800] - fileNotFound exception / more accurately determine if this is an upgrade

core/src/main/java/hudson/PluginManager.java

@@ -1194,7 +1194,6 @@ public abstract class PluginManager extends AbstractModelObject implements OnMas
                     }
 			updateCenter.persistInstallStatus();
                     jenkins.setInstallState(InstallState.INITIAL_PLUGINS_INSTALLING.getNextState());
-                    InstallUtil.saveLastExecVersion();
                 }
             }.start();
         }