I created a Dexterity content type and selected the behavior: "Locking support for dexterity".
I successfully created a content type. When I tried to edit I got an error. when I unchecked the behavior, editing worked fine.
I will post this as a bug in a few days unless I hear from someone showing me the cause.
I got this error:
Traceback (innermost last):
Module ZPublisher.Publish, line 138, in publish
Module ZPublisher.mapply, line 77, in mapply
Module ZPublisher.Publish, line 48, in call_object
Module z3c.form.form, line 218, in call
Module z3c.form.form, line 213, in update
Module plone.app.z3cform.csrf, line 21, in execute
Module z3c.form.action, line 98, in execute
Module z3c.form.button, line 315, in call
Module z3c.form.button, line 170, in call
Module plone.app.content.browser.actions, line 78, in handle_delete
Module plone.dexterity.content, line 707, in manage_delObjects
Module OFS.ObjectManager, line 536, in manage_delObjects
ResourceLockedError: Object "propose-a-booster-club" is locked via WebDAV