Navigating deoplete list opens scratch buffer

[lpil]

Hello! Thanks for this plugin

When I navigate the deoplete list with <C-n> or <C-p> (or the up/down arrows) it opens a scratch buffer in a split at the top of the window, showing the type signature. This persists after selecting an open.

Is this expected behaviour? How do I disable it?

Thanks, Louis

[Shougo]

set completeopt-=preview

[lpil]

Thank you so much!