Do you mean preview window or previous window? Ctrl-W P should take you 
to the preview window (:h preview-window) and not to the previous window 
and it doesn't trigger an error but seems to work as expected.

Perhaps you can give us an easy way to reproduce the error?

Best,
Christian
-- 
Frankreich wird das einzige Land sein, dessen Fahne auf einem 300
Meter hohen Mast weht.
                -- Gustave Eiffel

-- 
-- 
You received this message from the "vim_dev" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

--- 
You received this message because you are subscribed to the Google Groups 
"vim_dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.

Raspunde prin e-mail lui