Unexpected subtask behavior

[janakdom]

I would expect that if I add a sub-task to the task, then the whole task can be marked as completed only after all the sub-tasks have been completed. Alternatively, the main task is marked as completed by itself after all sub-tasks have been completed.

It irritates me when I click on a task with subtasks and it is immediately marked as completed...

Please add support for touch screens. Pretty unusable on a tablet. This feature has realy big potential.