We religously set up the "Assignee" and "Product Owner" fields on our assignment rules on every product tag, in the expectation that, when work items are created, these fields will be automatically filled in.  To be specific, we have set up assignment rules for record types "User Story" and "Bug".

What we see:

1. We set up assignment rules for a product tag, with Assignee and Product Owner filled in, for the "Bug" and "User Story" record type.
2. We use "New Work" (either from sprint wall or from Work tab) to create a new work item with the same product tag as in step 1.
3. The Assignee and Product Owner fields are null.

What we expected to see:

1. We set up assignment rules for a product tag, with Assignee and Product Owner filled in, for the "Bug" and "User Story" record type.
2. We use "New Work" (either from sprint wall or from Work tab) to create a new work item with the same product tag as in step 1.
3. The Assignee and Product Owner fields have been filled in with the respective fields from the applicable assignment rule.

Is anyone out there seeing these work as designed, or does anyone have any suggestions about how to enable this supposedly out-of-the-box behavior?