ZSQLCatalog: force using READ COMMITTED isolation level in...

ZSQLCatalog: force using READ COMMITTED isolation level in getPathDictForUidList and getUidDictForPathList.

as they are only called at the beginning of indexation.

product/ZSQLCatalog/SQLCatalog.py

@@ -1585,6 +1585,7 @@ class Catalog(Folder,
         path=None, # BBB
         path_list=path_list,
         uid_only=False, # BBB
+        isolation_level__='READ-COMMITTED',
       )
     }
 
@@ -1599,6 +1600,7 @@ class Catalog(Folder,
         uid=None, # BBB
         uid_list=uid_list,
         path_only=False, # BBB
+        isolation_level__='READ-COMMITTED',
       )
     }