A/B testing was used in the past to create mutually-exclusive mailings.
Since then a 100% limit for the recipients of an A/B campaign.
As there is no technical reason for this limit and not having it allows
for a special usecase, it is replaced here with a text warning.
The usecase in question being that as the domain of the different
mailings composing a campaign may be different, users may want to
take advantage of the fact that only 1 email will be sent to each
address to avoid sending 2 mailings when only one or the other should
be sent. Consequently users may want to use 100% of the domain on
every mailing in their campaign.
As the ab_testing_total_pc is only used for that purpose the field
is removed. 'total' field is not always accurate and is unused so
it is also cleaned up.
task-3008627
closesodoo/odoo#105639
Related: odoo/upgrade#4257
Signed-off-by: Warnon Aurélien (awa) <awa@odoo.com>
Renaud Thiry
37348521ce