[IMP] mail: do not subscribe inactive partners

We do not want inactive partners to be added as followers. Indeed this may
lead to unwanted notifications send as inactive partners are not easily
found in the various widgets. It also creates unnecessary data and
computation.

This commit has a small impact on performances as we choose to do it in
message_ subscribe method. Private _message_method is left untouched as
parameters given to this method are left to caller control.

This commit is linked to task ID 1838588.

0 files changed, 0 insertions, 0 deletions