Example scenario:
We are planning our next sprint. We discover one of our stories is too big, so we need to split it.
At the moment, the easiest way we came up with is to clone the user story and manually delete the sub-tasks from each one, so we have effectively two user stories, with some tasks in one and some in the other. The we move one into the Sprint and the other one is left in the Backlog.
This is quite cumbersome, specially when people is nervous. This kind of overhead it's being a real problem.
Is anyone out there suffering this problem too? Are we missing something or doing something wrong?