[urlpublishing] handle sub-types in RestPathEvaluator Since commit 31a1813d53f3 "[entity/url publishing] fetch_rqlst should use 'is_instance_of' instead of 'is'", the RestPathEvaluator's input rset can have more than one etype, so it can't always use sameetypelist. Related to #3825488

# -*- coding: utf-8 -*-
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"""%(distname)s entity's classes"""