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In Drupal 8, I can manage to create an "Entity Reference" view. In the preview area, it shows multiple fields separated by a string separate, just as I configured. For example:
However, in the real form, a selector does not show the expected fields as by configuration, but rather shows only content title:
I tried clearing cache, but it did not help. What setting in the view editor should I use to let the live entity selector show fields the same as in the preview?