[wp-testers] Category List Table -- Child Cat Display

[Matt Richmond]

When importing WXR with hierarchical categories using WP Importer 0.2
into vanilla install of latest trunk of WP (3.1-RC3-17365), the
top-level categories show right, but their children don't appear till
a category is added via the GUI.

Categories exist in post edit screens, etc., just don't appear in table.

Steps to reproduce:
1. Vanilla Install
2. Import WXR with hierarchical categories
3. Visit Categories page
(https://skitch.com/bigdawggi/rmm9t/immediately-after-import)
4. Add any category, and refresh page
(https://skitch.com/bigdawggi/rmm96/after-adding-category)