When to tree dump, copy objects fields if required
When to tree dump, copy objects fields if required

During TTree::Process result object remains.
Therefore if we simply collect reference on the object in the result
array, we just will see same values for all dumped events
linev/jsroot,bellenot/jsroot,linev/jsroot,root-project/jsroot,bellenot/jsroot,root-project/jsroot,bellenot/jsroot