[sources/native] ask permission to continue restoring even if metadata do not match (closes #7771864) Moreover we try to clarify the message (Expected/Found was never too clear for users).

# -*- coding: utf-8 -*-
# copyright %(year)s %(author)s, all rights reserved.
# contact %(author-web-site)s -- mailto:%(author-email)s
#
%(long-license)s
"""%(distname)s schema"""