Repeating task done cancelling don't recreate a task
Are you asking how to end a recurring task for good? Are you saying that deleting it is not working?
If you go onto the web version, and SHIFT click the task, does it complete it?
When mark today instance of a repeating task(for e.g. set complete time as "every day at 18.00") as complete on my phone it remove this task from current day and create new task for next day. That's all ok here. But when i mark task as complete i see a popup window, where i can to undo this task. And when i click this Undo button, nothing happens. But i expect that todays instance of task would be restored.
The undo option doesn't work for recurring tasks. A recurring task does not recreate itself with a different date - it's always the same task that changes the date, but it can only change it forward.
You can only undo the completion of a single-occurring tasks in which if changes the status from "completed" to "not completed".
I think that the very phrase "doesn't work" means that something wrong here. If this is incorrect action for this kind of tasks i shouldn't see a button that offer me do it it.
You are correct, and I have passed this to the developers to remove it from recurring tasks.