Merge branch 'fix-create-data-vol@@2' into 'master'

<fix>[storage]: fix create data volume from image

See merge request zstackio/zstack!3492

Author: gitlab

storage/src/main/java/org/zstack/storage/volume/VolumeManagerImpl.java

@@ -324,7 +324,11 @@ public void run(final FlowTrigger trigger, Map data) {
                         amsg.setPurpose(PrimaryStorageAllocationPurpose.CreateDataVolume.toString());
                         amsg.setRequiredPrimaryStorageUuid(msg.getPrimaryStorageUuid());
                         amsg.setRequiredHostUuid(msg.getHostUuid());
-                        amsg.setSystemTags(msg.getSystemTags());
+                        if (msg.getApiMsg() != null) {
+                            amsg.setSystemTags(msg.getApiMsg().getSystemTags());
+                        } else {
+                            amsg.setSystemTags(msg.getSystemTags());
+                        }
 
                         if (vvo.isShareable()) {
                             amsg.setPossiblePrimaryStorageTypes(PrimaryStorageType.getSupportSharedVolumePSTypeNames());