QField Sync problem with geopackage and relation

[chrisgisITA]

I am having a lot of problems with the new version of the plugin. When creating an offline project for export via USB, a data.gpkg file is created which does not maintain the parent-child relationships set up in the QGIS project. It also creates its own primary keys (fid) which at the time of synchronization are not reported in the original DB making the work done practically useless