=== modified file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/dataset/DataSet.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/dataset/DataSet.java	2011-08-26 20:38:26 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/dataset/DataSet.java	2011-11-11 13:23:20 +0000
@@ -240,7 +240,7 @@
     
     public DataSet increaseVersion()
     {
-        this.version = this.version + 1;
+        version = version != null ? version + 1 : 1;
         return this;
     }