Mixed commit:

  43b1ae1bc46b453e4553a9bc1077fe86e5db13bb
  2f05fe1b585d3ca736538b32269d36a410f5f7da

Returning true allows to add movements to existing one, and this group shall
always separate them.

Note: Generic code shall have no constraints at all.

Conflicts:

	bt5/erp5_accounting/bt/revision

If 2 lines have the same effective date (catalog has a 1 second precision),
always return the validate and open first.

Commit: 02d06501ce38bc24d5d045968a53017d9b96b312

Changes applied from history:

http://git.erp5.org/gitweb/erp5.git/history/refs/heads/interaction-drop:/product/ERP5/Document/SubscriptionItem.py?js=1

Original commit from : Lukasz Nowak <luke@nexedi.com>
                       3e45ec35

Conflicts:
	bt5/erp5_crm/bt/revision

See merge request nexedi/erp5!1500

1. display employee number
2. add preview
3. add parameter to send to maileva

maileva

See merge request !1544

erp5_api_style: Use default module for object creation

erp5_api_style: jIOStyle fix error handling for post

erp5_api_style: Start improving error feedback

erp5_api_style: Add error record module and portal type

erp5_api_style: Fix error output as jIO Style

erp5_api_style: Introduce jIO Web Section

erp5_api_style: catch value Error when error text is not a json

erp5_api_style: Add generic way to handle errors

erp5_api_style: Fix Web Section Portal Type for api style

erp5_api_style: Fix jIO Api Style

* use self.REQUEST instead of parameter in jIO Web Section
* Use List error in allDocs

erp5_api_style: API error return http error code 400

erp5_api_style: Display actions title in jio web section configuration listbox

erp5_api_style: allDocs return indented result

erp5_api_style: Add response schema to jIO Style. Object creation return 201 http code

erp5_api_style: Post set status to 201 only if status is not yet defined

erp5_api_style: action list is now sorted by float index

erp5_api_style: all docs return error dict like post

erp5_api_style: error can return error name and error link

erp5_api_style: improve error handling in jIO Style

* Give name to errors
* Error Name is stored in error record title

erp5_api_style: Add views for error records

erp5_api_style: add script to provide JSON API Hyperschema

erp5_api_style: fixup not found document return 404 error

erp5_api_style: api is in charge of JSON decoding and provide utf 8 data

erp5_json_form: Improve error feedback

erp5_json_form: Add missing property sheet JSON Form

erp5_json_form: Add response Schema to JSON Form

erp5_json_form: Add Init Script on JSON Form

* Useful to set content type to "application/json"

erp5_json_form: Cleanup JSON Form document

* Add basic property sheets
* Add init script to set Constraint and Type
* Validator can return the list of errors
* Provide field library

When EmptyCriterionValid property is true, this method is expected to
return a query which does not match any document. This only happens when
query_list is empty, but because of category membership checking,
query_list is never empty: it at least contains two ComplexQueries which
themselves may contain an empty query list, and which match all documents.
Calling getCategoryParameterDict with an empty list is dubious, but
changing its behaviour in ZSQLCatalog may affect more than just predicates,
so change the behaviour in Predicate class directly by checking whether
there is any category being matched to begin with.

Pygolang installs import hooks for pytest and ipython, to add
exception-chaining support into them(*) _iff_ (if and only if) those
modules are actually used. This works via Importing[1] which
pre-installs artificial modules into sys.modules that catch
__getattribute__ and try to import corresponding module for real on
first access. Usually everything is fine.

But with pylint/astroid, if the checker code happens to run with those
LazyModules installed, and the checked code has `import sys` somewhere,
astroid eventually delves into processing sys, then sys.modules and
wants to represent that sys.modules dict as dict of constant. Then, when
e.g. sys.modules['_pytest'] is processed, corresponding module object is
checked for .__class__, which raises ImportError if pytest is not
actually available:

    ( https://erp5js.nexedi.net/#/test_result_module/20220127-129289AE2/33 )
    ...
    File ".../eggs/astroid-1.3.8-py2.7.egg/astroid/node_classes.py", line 553, in __init__
        for k, v in items.items()]
      File ".../eggs/astroid-1.3.8-py2.7.egg/astroid/node_classes.py", line 962, in const_factory
        return CONST_CLS[value.__class__](value)
      File ".../eggs/Importing-1.10-py2.7.egg/peak/util/imports.py", line 254, in __getattribute__
        _loadModule(self)
      File ".../eggs/Importing-1.10-py2.7.egg/peak/util/imports.py", line 222, in _loadModule
        reload(module)
    ImportError: No module named _pytest

-> Fix it by detecting those lazy modules and not letting them go through
normal const_factory not to crash.

/cc @jerome, @arnau
/reviewed-by @rafael
/reviewed-on nexedi/erp5!1546 and nexedi/slapos!1117

[1] https://pypi.org/project/Importing/

(*) see:
    https://lab.nexedi.com/nexedi/pygolang/blob/pygolang-0.1-0-g7b72d41/golang/_patch/__init__.py
    https://lab.nexedi.com/nexedi/pygolang/blob/pygolang-0.1-0-g7b72d41/golang/_patch/pytest_py2.py#L48-51
    https://lab.nexedi.com/nexedi/pygolang/blob/pygolang-0.1-0-g7b72d41/golang/_patch/ipython_py2.py#L45-48

See merge request !1517

erp5_base: add constraint and action to make sure Employee Number is unique instead of manually setting