nnimap respool with new rule problem

[Anupam Kapoor <akapoor@starentnetworks.com>]

i am not sure if this post made it or not. just reposting it, if it
didn't go through.

hi all,

i am using nnimap as the backend, and also the nnimap-split-fancy for
splitting mail. basically, what i want to do is this: 

respool all the mails that are sitting in the default catchall group,
via a new splitting rule into a new group (recreating the new group in
the process, if it is not already there)

so, here is what i did:

1. i added a new splitting rule: ("subject" "auto build report" "auto-builds")

2. i go to the summary buffer, process mark all the articles, and
   respool them with a 'B r'. 

which results in tons of messages in the *Message* buffer like this:

,----
| Couldn't Copy article 3: Protocol Error: "Specified folder name is not
| valid".
| Protocol Error: "Specified folder name is not valid".
|
| Couldn't Copy article 4: Protocol Error: "Specified folder name is not
| valid".
| Protocol Error: "Specified folder name is not valid".
|
| Couldn't Copy article 5: Protocol Error: "Specified folder name is not
| valid".
|
| Protocol Error: "Specified folder name is not valid".
`----

how to rectify the situation ? 

any help will be greatly appreciated.

i am using "No Gnus v0.3" and "GNU Emacs 22.0.50.1"

thank you
kind regards
anupam