VPV fix for the following case:

VPV fix for the following case:

Import the specification document : ex: Cahier des charges
Import the 1st geometry script : e0_donnees.py uses Cahier des charges
Import the 2nd geometry script : e1_geometrie.py uses Cahier des charges and e0_donnees
Version the specification document.
==> There is no Information message like "Warning: The documents below will ...."