Merge pull request #475 from b0ink/fix/mark-date-adjusted-comments-read

fix: mark task due date adjustment comment as read by tutor

Author: b0ink

app/api/tasks_api.rb

@@ -132,7 +132,7 @@ class TasksApi < Grape::API
       task.extensions = params[:extensions]
       task.save
 
-      TaskComment.create(
+      comment = TaskComment.create(
         task: task,
         user: current_user,
         comment: "Planned date adjusted to #{task.due_date.strftime('%d %b')}.",
@@ -141,6 +141,8 @@ class TasksApi < Grape::API
         extension_weeks: params[:extensions]
       )
 
+      comment.mark_as_read(project.tutor_for(task_definition))
+
       present task, with: Entities::TaskEntity, include_other_projects: true, update_only: true
     else
       error!({ error: "You are not permitted to adjust the plan." }, 403)