commit b51ad4d62bc419286622458fb5be6dbeda61546e
Author: Leszek Koltunski <leszek@koltunski.pl>
Date:   Thu Dec 29 00:42:55 2022 +0100

    Bugfix: properly display number of stars on new installs.

diff --git a/src/main/java/org/distorted/main/RubikActivity.java b/src/main/java/org/distorted/main/RubikActivity.java
index 8321698b..98e8fef3 100644
--- a/src/main/java/org/distorted/main/RubikActivity.java
+++ b/src/main/java/org/distorted/main/RubikActivity.java
@@ -282,7 +282,7 @@ public class RubikActivity extends AppCompatActivity
 
       if( mIsChinese && !mPolicyAccepted ) privacyPolicy();
 
-      if( USE_IAP && mOldVersion!=null && oldVersionLessThan(1,11,5) && !mCurrVersion.equals("1.11.4") )
+      if( USE_IAP && mOldVersion!=null && !mOldVersion.equals("") && oldVersionLessThan(1,11,5) && !mCurrVersion.equals("1.11.4") )
         {
         explainStars();
         }