target_id is 0 in Entity Ref field when using formatters other than Entity ID

The token replacement for the ID of an Entity reference field is 0 unless the Entity ID formatter is used for that field.

To reproduce:

• Create a new View
• Add the "Content: Authored by" field
• In the "Configure field" dialog
  • Expand "Rewrite results" fieldset
  • Tick the "Override the output of this field with custom text" checkbox
  • Enter something similar to {{ uid }} is {{ uid-target_id }} in the text field
• Apply

The uid-target_id is shown as 0.

If the field "Formatter" is set to "Entity ID" then it works as expected.