From https://github.com/backdrop/backdrop-issues/issues/480#issuecomment-7149...

I am closing the respective issue from the contrib module queue (https://github.com/backdrop-contrib/token/issues/2) and moving it to core since token is planed for addition to core soon (in 1.1.0). - Respective issue in d.org for D8: https://www.drupal.org/node/1070878

- Drupal contrib module: Field Default Token

PR by @benjifisher at https://github.com/backdrop/backdrop/pull/1844

GitHub Link: 
https://github.com/backdrop/backdrop-issues/issues/885
GitHub Issue #: 
885