Provides a widget for taxonomy fields with additional option to create new terms on the fly.
- New checkboxes are only saved to the database on node submission.
- No orphan terms in the vocabulary when the node with new terms was not saved.
- Only new terms which are checked, will be saved. E.g. when you add a new term with a typo, just uncheck the term and it will not be created on node submission.
Special thanks to Heipenberg for co-developing.