Fix Mailer.upcoming_tasks

app/mailers/mailer.rb

@@ -35,6 +35,7 @@ class Mailer < ActionMailer::Base
   def upcoming_tasks(user, task)
     @user = user
     @task = task
+    @next_tasks = Task.order(:due_date).next_assigned_tasks_for(user)
 
     mail to: user,
          subject: I18n.t('mailer.upcoming_tasks.subject')

app/views/mailer/upcoming_tasks.text.haml

@@ -1,7 +1,7 @@
 = raw t '.text0', user: @user.name, task: @task.name, when: I18n.l(@task.due_date, format: t('mailer.dateformat'))
-- if @user.next_tasks.size > 0
+- if @next_tasks.size > 0
   = raw t '.nextweek'
-  - for next_task in @user.next_tasks
+  - for next_task in @next_tasks
     - next if next_task == @task
     * #{raw I18n.l next_task.due_date, format: t('mailer.dateformat')} #{raw next_task.name}
 = raw t '.text1', user_tasks_url: user_tasks_url, foodcoop: FoodsoftConfig[:name]