This reverts commit 1780a1e9.

and add necessary values for calculating price per slice

To be sure that Cells are updated correctly when the pricing method is chosen

otherwise naturalWidth/naturalHeight may be 0

Domains are not meant to display too many documents at the same level.

Domains are not meant to display too many documents at the same level.

Domains are not meant to display too many documents at the same level.

/reviewed-on nexedi/erp5!830

Avoids accumulating useless connections when a single test file contains
multiple files.

Sorting on all documents is a performance killer.

In case no query parameter is available, do not trigger any allDocs
calculation and do not display the listbox, as results would be
meaningless.

For instance, typing a backslash in a relation field does not crash the ui anymore.

/bug #20180123-D78557
https://nexedijs.erp5.net/#/bug_module/20180123-D78557

This property is only conditionally set, which causes distracting error
when something goes wrong. If we really want to check that the expected
code path was followed there has to be a better check and a more debugging-
friendly error than an AttributeError.