See
http://orchard.codeplex.com/discussions/259747 for full history of this issue.
When a field is attached to a Content Part their settings are adjusted on the Content Type edit page. Sebastien has said that in this case "the settings are different per content type" but I'm not seeing this behavior.
When I add a field to a part and change the settings from the type editor page those settings are persisted between all types that have the part attached.
Steps to reproduce:
- Add an Orchard Date/Time field to the Title Part.
- Edit the Page content type and change the Display Option setting to Date Only.
- Now edit the Blog Post content type, note that the Display Option is Date Only. Change it to Time Only.
- Go back to the Page content type and notice that it is Time Only.