Cause of warning is concatenate_uniq() in workflow/rules/common.smk
Needs to be fixed to avoid problems later
CopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead
See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
self._set_item(key, value)
Cause of warning is concatenate_uniq() in workflow/rules/common.smk
Needs to be fixed to avoid problems later