fix issue updating a vim network in a  multisite deployment

Change-Id: I27bb7e49b3f97af0d2efdf0b839b3df2fad10f05
Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>
diff --git a/osm_ro/vim_thread.py b/osm_ro/vim_thread.py
index 455c625..7b197da 100644
--- a/osm_ro/vim_thread.py
+++ b/osm_ro/vim_thread.py
@@ -707,9 +707,12 @@
                     UPDATE={("number_failed" if task["status"] == "FAILED" else "number_done"): {"INCREMENT": 1}},
                     WHERE={"uuid": task["instance_action_id"]})
             if database_update:
+                where_filter = {"related": task["related"]}
+                if task["item"] == "instance_nets" and task["datacenter_vim_id"]:
+                    where_filter["datacenter_tenant_id"] = task["datacenter_vim_id"] 
                 self.db.update_rows(table=task["item"],
                                     UPDATE=database_update,
-                                    WHERE={"related": task["related"]})
+                                    WHERE=where_filter)
         except db_base_Exception as e:
             self.logger.error("task={} Error updating database {}".format(task_id, e), exc_info=True)