When updating default layout for content type, update all contents

The overrides are there for a reason, we can't just change them when the default changes.

Do you mean an option to reset all layouts to the default? I could possibly see that being added as a bulk action.

Updating all the contents to include the same change as was made to the default, but keeping the overrides otherwise, is not really an option - we have no idea if the same change can be safely made.

+1 for the thoughts @catch outlined. I don't think we can do this in a safe manner. Especially when there is a lot of content and a large editorial team.

Potentially this is something that could go into a contrib module, but I don't think it should be in core.

No further updates or requests for this in 8 months. This would be very difficult to implement safely for the reasons outlined in #3. This could be built as part of contrib.