[storages] fix fs_importing side-effect on entity.data When creating a new File object, if fs_importing is set, we want entity.data to be the file content instead of the filepath for the rest of the transaction. (see test_bfss_fs_importing_transparency) for test implementation To make this possible, the storage hooks (entity_added / entity_updated) must return the correct value to set in the entity dict.

CubicWeb.require('ajax.js');

function removeBookmark(beid) {
    d = asyncRemoteExec('delete_bookmark', beid);
    d.addCallback(function(boxcontent) {
	    reloadComponent('bookmarks_box', '', 'boxes', 'bookmarks_box');
  	document.location.hash = '#header';
 	updateMessage(_("bookmark has been removed"));
    });
}