ndb - fix memleak (due to incorrect merge of bug#21941)

  recommit into release-clone

storage/ndb/src/ndbapi/NdbScanOperation.cpp

@@ -701,7 +701,7 @@ void NdbScanOperation::close(bool forceSend, bool releaseOp)
   theNdbCon = NULL;
   m_transConnection = NULL;
 
-  if (tTransCon) 
+  if (tTransCon && releaseOp) 
   {
     NdbIndexScanOperation* tOp = (NdbIndexScanOperation*)this;
 
@@ -716,7 +716,7 @@ void NdbScanOperation::close(bool forceSend, bool releaseOp)
 					&tTransCon->m_theLastScanOperation,
 					tOp);
     }
-    else if (releaseOp)
+    else
     {
       ret = tTransCon->releaseScanOperation(&tTransCon->m_firstExecutedScanOp,
 					    0, tOp);