Export only selected pages/space

Hi everyone,

I would be nice to have the possiblity in the export function to select only some pages/spaces to export.

My point is, when you migrate to an upper version of Xwiki, you have to reinstall the basics xar related to the version we want to install. We have to do that in order to have the latest version of some applications, like Panels for example (which, in the version 1.8.1, corrects the page concerning the syntax help when we're editing a page).

The problem is there when you've implemented, for example, some panels,/pages. The basic backup saves all : the core (basics pages imported thanks to the basic xar) and the "rest" (pages/spaces you've implemented). It's bac (correct if I'm wrong) when you want to migrate to an upper version of xwiki cause you have to install a new "core" (basics pages).

It's possible to only import some pages of the xar we have uploaded but I honestly think it'd be nicer to have the possibility to select the pages we want to export instead of select the pages wa want to import when the file is uploaded.

Hesediel.