Today, I modified a custom Schema to make a text field a list field. This process went well, and new collections show the changes working properly. I suspected the changes to be active in older collections using the same schema - this was not the case. However, when I deleted fields from the same schema, those fields were properly removed from the same collection. Earlier, Joe said he had broken something the collection arena..and this may be related to that issue?
Also, I have been trying to use: Updated: {{ post.updated | date("M j, Y") }} and Created: {{ post.created | date("M j, Y") }} in Header fields. In each case I get 'today's date' for each object in the collection and neither is correct. A bug?