recatch ValueError in _checkConsistency ...

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@8491 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/XMLMatrix.py

@@ -668,12 +668,11 @@ class XMLMatrix(Folder):
         is_int = 1
         test_num = None
         while base_id_len > 0:
-          # XXX it is bad to use except without exception name !
-#           try:
+          try:
             # if this succeeds, it is very likely a cell with an id such as quantity_X_Y_0_Z
             test_num = int(object_id_split[base_id_len-1])
-#           except:
-#             is_int = 0
+          except ValueError:
+            is_int = 0
           if not is_int: break
           base_id_len -= 1
         if base_id_len > 0: