To explain the subject, i will give an example encountered recently:
We used, for a customer project, a view with Agreement, Virtual and Variant product entities and where the agreement can be attached to a virtual OR a variant product.
So to make a view returning Variant Product, Virtual Product AND Agreement informations, i could not create a view, as the key-map link is mandatory and made it impossible.
I can not have an alternative relation to the same entity so we have to duplicate member-entity and an alternative relation path. The result is a complicated and ugly entity-view
I think this can have been much simpler if i could have done it directly through the entity-condition (see the AGPA/PDTA view link in attached file ExampleWithoutKeyMap.xml)
So the purpose of this jira is to add the possibility to create a view-link without key map, if there is an entity-condition.
You can test by applying the given patch and add the entity view from attached file ExampleWithoutKeyMap.xml