acl_users ERP5 user enumeration plugin(s) already search for Persons by
their user id, so this code duplicates the checks done just a few lines
above it.

Rather than testing before calling.

acl_users is one of the rare objects (with SQL connectors) which are
intended to be fetched by acquisition, allowing overrides.
Also, move code out of try..finally block where possible.

@seb I need this for a wendelin project, but I think it is usefull in generic erp5, is it ok ?

/reviewed-on nexedi/erp5!203

Save all settings with one jIO put only.

Feedback after  8c313674 and
72dfb2c4  from many people where that
they really miss this column in default print mode (having it only in
export mode was not enough) and that they do not need need
modification_date.

accounting: fix "Total Selected Amount" not being updated after searching in grouping reference fast input

This is not yet enabled by default to enable just add Internal Invoice Transaction in allowed content types of Accounting Transaction Module

We only want to do it when starting an internal invoice, but it will
probably make the invoice inconsitent, because not balance. This should
not be a problem for the source accountant who is starting the invoice,
but is something destination accountant have to fix before stopping.

Since the beginning, there was in getCategoryChildItemList Renderer
API the possibility to pass a parameter 'current_category'. The idea
was to allow displaying a category which is not part of what the item
list will return (typically, if you expire a category, and if you check
permission, the category will not be in item list any more).

But the way it was implemented was too inconvenient and it looks never
used. So improve several things:
- possibility to pass multiple categories for multi value cases
- reuse renderer to render current categories instead of just reinjecting
  the url (which is not user friendly)
- implement handling of current_category_list in getCategoryChildItemList
  to allow caching the result of the Renderer. The only part which is not
  cached is the rendering of current categories.

/reviewed-on nexedi/erp5!201

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