[web/views] fix editcontroller regression unittest_views_basecontrollers.py's EditControllerTC.test_edit_mandatory_inlined3_object regressed with changeset dcbb64d3a1d9 because it relied on POSTing nonexisting eids. This seems like a silly idea, but let's keep the behaviour unchanged.

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