Fixed checking for rights on can create for tasks

pkg/models/list_tasks_rights.go

@@ -33,7 +33,16 @@ func (t *ListTask) CanUpdate(a web.Auth) bool {
 
 // CanCreate determines if a user has the right to create a list task
 func (t *ListTask) CanCreate(a web.Auth) bool {
-	return t.canDoListTask(a)
+	doer := getUserForRights(a)
+
+	// A user can do a task if he has write acces to its list
+	l := &List{ID: t.ListID}
+	err := l.GetSimpleByID()
+	if err != nil {
+		log.Log.Error("Error occurred during CanDelete for ListTask: %s", err)
+		return false
+	}
+	return l.CanWrite(doer)
 }
 
 // CanRead determines if a user can read a task