Two problems so far:

1) gnus-registry-split-fancy-with-parent returns list of nils (eg: '(nil) or
   '(nil nil) instead of just nil in case of the parent article cannot be
   found.

2) got Lisp error: (wrong-type-argument hash-table-p nil) in
   gnus-registry-save() when exiting.  see the attacted back trace.

-- 
Danny Dick-Fung Siu              mailto:dsiu@adobe.com
Advanced Technology Group @ Adobe Systems Incorporated