Fix the size of a template downloaded from secondary storage

Fixing the size of a template that is downloaded from secondary storage
to StorPool

Author: slavkap

Diff for: plugins/storage/volume/storpool/src/main/java/org/apache/cloudstack/storage/datastore/driver/StorPoolPrimaryDataStoreDriver.java

@@ -776,7 +776,8 @@ public void copyAsync(DataObject srcData, DataObject dstData, AsyncCompletionCal
 
                         if (answer != null && answer.getResult()) {
                             // successfully downloaded template to primary storage
-                            answer = createVolumeSnapshot(cmd, size, conn, volName, dstTO);
+                            TemplateObjectTO templ = (TemplateObjectTO) ((CopyCmdAnswer) answer).getNewData();
+                            answer = createVolumeSnapshot(cmd, size, conn, volName, templ);
                         } else {
                             err = answer != null ? answer.getDetails() : "Unknown error while downloading template. Null answer returned.";
                         }