sup talk - Nov 2007 - Sup error when saving mails using maildir

I  was  trying  to switch to a maildir with all my mails, so I marked them and
read and archive them all. However I hit this error while saving.

Any idea?

Here is the backtrace...

The problem was: ''trying to delete non-corresponding entry 3321 with
index message-id "3DB8D934-72AE-11D9-A8FB-000A95DBE2C4 at
feydakins.org" and parameter message id "20050206210231.GA3364 at
yargla.epita.fr"'' (error type RuntimeError)
A backtrace follows:
/opt/local/lib/ruby/gems/1.8/gems/sup-0.2/lib/sup/index.rb:164:in
`sync_message'': trying to delete non-corresponding entry 3321 with
index message-id "3DB8D934-72AE-11D9-A8FB-000A95DBE2C4 at
feydakins.org" and parameter message id "20050206210231.GA3364 at
yargla.epita.fr" (RuntimeError)
	from /opt/local/lib/ruby/gems/1.8/gems/sup-0.2/lib/sup/util.rb:485:in
`send''
	from /opt/local/lib/ruby/gems/1.8/gems/sup-0.2/lib/sup/util.rb:485:in
`method_missing''
	from /opt/local/lib/ruby/gems/1.8/gems/sup-0.2/lib/sup/message.rb:126:in
`save''
	from /opt/local/lib/ruby/gems/1.8/gems/sup-0.2/lib/sup/thread.rb:110:in
`save''
	from /opt/local/lib/ruby/gems/1.8/gems/sup-0.2/lib/sup/thread.rb:66:in
`each''
	from /opt/local/lib/ruby/gems/1.8/gems/sup-0.2/lib/sup/thread.rb:166:in
`each_with_stuff''
	from /opt/local/lib/ruby/gems/1.8/gems/sup-0.2/lib/sup/thread.rb:164:in
`each_with_stuff''
	from /opt/local/lib/ruby/gems/1.8/gems/sup-0.2/lib/sup/thread.rb:166:in
`each_with_stuff''
	 ... 15 levels...
	from /opt/local/lib/ruby/gems/1.8/gems/sup-0.2/lib/sup/buffer.rb:203:in
`handle_input''
	from /opt/local/lib/ruby/gems/1.8/gems/sup-0.2/bin/sup:210
	from /opt/local/bin/sup:18:in `load''
	from /opt/local/bin/sup:18

-- 
Nicolas Pouillard aka Ertai