WblockCloneObjects() method issue

Hi,

I try to clone blocks between projects by using WblockCloneObjects() method, but have an issue shown on the pic below. According my idea blocks should be cloned without insertion to model space, but I can not accomplish that with following code:

db.WblockCloneObjects(cloneableObjects, db.BlockTableId, acIdMap, DuplicateRecordCloning.Ignore, false);

In case if I change owner property to CurrentSpaceId, code starts to work, but with an insertion to model space.

Need help!