fixup! [IMP] mail_activity_team: assign plan activities to teams

Author: StefanRijnhart

mail_activity_team/views/mail_activity_plan_template_views.xml

@@ -7,7 +7,7 @@
             <field name="responsible_id" position="after">
                 <field
                     name="activity_team_user_id"
-                    invisible="not activity_team_id"
+                    invisible="not activity_team_required"
                     options="{'no_create': True}"
                     domain="[('activity_team_ids', '=', activity_team_id)]"
                 />