Importing Places CSV

Some checks between gramps xml files before and after changes:

City renamed into Ville (city in french),
Deleted place date (it don’t appear in the CSV file):

Date ranges not properly included in CSV file: no way to make difference between from-to and between-and dates

Before and After dates are in english (bef and aft) in CSV file and not reimported properly, I’d to change them in Avant or Après, their french equivalent

Some strange changes like this (I had to check my own changes in OpenRefine):