Vocabulary should be obtained from field's value_type, if present.
Do not override the relatedItems, and provide a related field to use.
No longer needed to override relatedItems for AT
Include a MultiRelationItemsWidget for List fields and a RelatedItemsWidget for Choice fields.
fix: plone.app.contenttypes collection use behavior, fix bbb
remove pdb
Do not override the Collection field and provide the widget to use
Do not provide a default vocabulary if none is provided, and fix the tests
Do not override the relatedItems, and provide a related field to use.
Include a MultiRelationItemsWidget for List fields and a RelatedItemsWidget for Choice fields.
Adapt the relation fields to use these widgets
Import from correct module
adding RelatedItemsFieldWidget