Linked Collections are not converted

[fdplacido]

I created a test in k4MarlinWrapper to test conversion of collections from EDM4hep to LCIO to EDM4hep.
When converting Tracks, these can have other Tracks linked to it. I test that these linked Tracks remain in the conversion between EDM4hep to LCIO.
But when converting from LCIO to EDM4hep these linked Tracks are missing in the resulting EDM4hep collection. This is probably true for other collections that have linked collections.

The conversion is done using k4LCIOConverter like so:

podio::CollectionIDTable* id_table = new podio::CollectionIDTable();
k4LCIOConverter* lcio_converter = new k4LCIOConverter(id_table);
lcio_converter->set(the_event);

T* mycoll = dynamic_cast<T*>(lcio_converter->getCollection(lcio_name));

[zoujh]

Hi @fdplacido , is it possible to send me ([email protected]) such a data sample? It's important to reproduce the problem for debugging. Thanks!

[fdplacido]

I sent you the data sample and some info. Thanks!

[zoujh]

If object A and B are in the same collection, then A cannot be linked to B correctly. This is fixed in this commit. Thank you!

[fdplacido]

I tested this and it works fine now, thank!