title: Android & OrmLite: OnUpgrade fails
body: <p>I have a small problem with OrmLite on Android.</p>
  
  <p>When I increment the database version, the <code>onUpgrade</code> method is called as expected in my OrmLite Helper. After the upgrade, the <code>onCreate</code> method is called and I get this exception:</p>
  
  <pre><code>11-24 10:09:45.720: ERROR/AndroidConnectionSource(390): connection saved
      com.j256.ormlite.android.AndroidDatabaseConnection@44f0f478 is not the one
      being cleared com.j256.ormlite.android.AndroidDatabaseConnection@44f5d310
  </code></pre>
  
  <p>I have no clue why the cleared connection is not the same as the saved one.</p>
  
  <p>I've put also my database functions (insert...) into the OrmLite Helper class. Maybe this could be a problem?!?</p>
  
  <p>A snippet from my helper class:</p>
  
  <pre><code>public class OrmLiteDBProvider extends OrmLiteSqliteOpenHelper
      implements IEntityProvider, IDBProvider {
  
  //snip
  @Override
  public void onCreate(SQLiteDatabase db, ConnectionSource connectionSource) {
      try {
          Log.i(OrmLiteDBProvider.class.getName(), "Creating database and tables");
          TableUtils.createTable(connectionSource, OrgManaged.class);
      } catch (SQLException e) {
          Log.e(OrmLiteDBProvider.class.getName(),
              "Can't create database and tables", e);
          throw new RuntimeException(e);
      }
  }
  @Override
  public void onUpgrade(SQLiteDatabase db, ConnectionSource connectionSource,
     int oldVersion, int newVersion) {
      try {
          Log.i(OrmLiteDBProvider.class.getName(),
              "Database version changed. Dropping database.");
          TableUtils.dropTable(connectionSource, OrgManaged.class, true);
          // after we drop the old databases, we create the new ones
          onCreate(db);
      } catch (SQLException e) {
          Log.e(OrmLiteDBProvider.class.getName(), "Can't drop databases", e);
          throw new RuntimeException(e);
      }
  }
  </code></pre>
  
  <p>I think it's something simple I'm missing.</p>
  
  <p>Thanks in advance for your effort.</p>