Duplicated facts on import #50
Description
During refresh() while importing assets, sometimes the asset end up having facts duplicated, which creates problems downstream as they can be copied through transfer relations and during the copy there is no duplications check, as this situation could be normal data.
It could be happening if, during the import, we start working in the plate without finishing the current refresh() and possibly running the refresh() twice. Unfortunately the current master branch does not have a link between Operation and Fact, so we do not have a track about who created the duplications, unless we look at the logs file.