Patch sql

bibliotheques/sql/sql.py

@@ -108,5 +108,5 @@ def formalize_data_list(function):
 def unformalize_data_list(initial_data: str):
     sublists = initial_data.split("/")
     sublist_data = [x.split(",") for x in sublists]
-    new_data = [[k for k in x] for x in sublist_data]
+    new_data = [[None if 'None' in k else k for k in x] for x in sublist_data]
     return tuple(new_data)
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