[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.
option_group_changed('port', 'main', 'web')
option_group_changed('query-log-file', 'main', 'web')
option_group_changed('profile', 'main', 'web')
option_group_changed('max-post-length', 'main', 'web')