Currently there are several issues with this configuration box
* default_<field> does not generate automatically ir.values anymore.
Defining default_model does not work since it is not linked to an
existing <field> in current model sale.config.settings. Checkbox
value is therefore not saved and lost at reload;
* box label is not clear as user may understand unchecking it drops
all aliases or email support. This is not the case as it is only used
to define an alias creating unassigned leads. This is a rare use case
where leads assignation is done manually;
* checking / unchecking the 'Emails' box does not have any effect on
default info alias. This is counter-intuitive as user asks to remove
the feature but it still works in background;
This commit fixes those issues by
* correctly setting the checkbox value in an ir.config_parameter so that
it is not lost anymore at reload;
* inactivating info alias by default;
* adding onchanges so that values are reset when unchecking checkboxes;
* updating string and displayed label and helps for the 'Emails' section;
* putting that Emails checkbox in advanced mode as it is a rare use case;
Thibault Delavallée
ff0053b416