movement.hasCategory('quantity_unit') was always false, it was a
misunderstanding of hasCategory API. This was working anyway because
of the order of edit (which depends on iteration order of **kw arguments
passed to edit), this was only working when quantity unit was set before
resource.

( this was revealed by test_01_quantity_unit_copied from testInvoice
running on python2 with PYTHONHASHSEED=164 )

This produces stable output that we can assert more easily in the test

When a business template has multiple dependencies, these dependencies
were installed in an order defined by iteration in dictionaries, which
is not deterministic when using a random PYTHONHASHSEED on python2.

As an example, when we have business template "b" depending on "b1" and
"b2", the only guarantee was that "b" would be installed after "b1" and
"b2", but which one of "b1" and "b2" is installed first was undefined,
now it is stable, "b1" should be installed before "b2", because we added
a sort. In practice it should not matter, because if in that example
"b2" really needs to be installed after "b1", then "b2" should declare a
dependency on "b1".

test_resolveBusinessTemplateListDependency was failing on python3
because the order on python3 was different from the one using
PYTHONHASHSEED=0 on python2.

In that case, the order of actions rendering is undefined, we want to
have unique priorities to have deterministic order of actions.

This things (in practice, tests) deterministic

This probably happened only in the test, but it's safer not to retry
for ever.

See merge request nexedi/erp5!1885

It was using "Reference" instead of the dedicated term "Currency Code".

Attribute Unicity constraint message was not correctly including the
reference, the error message was always "Another currency with reference
None already exists".

See merge request nexedi/erp5!1877

    Use a form, so we do not have to hardcode the resource.

   Also include a minimal message.

expand always reindex the full simulation tree, even if there is nothing to do.
This is cpu costly.

No need to generate simulation expand error

* copy all aggregate values
* expand source/destination project defined on the open order
* expand source/destination payment
* support Open Order Cell
* if there is no stop_date, block the generation to today

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

See merge request nexedi/erp5!1875

See merge request nexedi/erp5!1873

This script has no reason to be an exception to user's title retrieval
permissions.
Non-ERP5 users do not have applicable access control, so handle those
cases specifically. Such users may be:
- since-deleted ERP5 users
- coming from acl_users/zodb_users
Use a generic placeholder when the user is not allowed to see a
transition's actor.

This allows configuring what URLs can be ingested, by default, no URL
can be ingested.