If this is heresy, please put down your torches.
We frequently discover that we have to add or remove TASKS into or out
of an iteration before the iteration is done and closed.
These are intrinsically tasks not backlog items. E.g. we have a
backlog item LDAP Authentication of logins.
I haven't been able to find a way to move these into the next sprint
before closing the current sprint. This
clutters the current sprint detail, member detail, burndown chart, ...
It is really not appropriate to create new backlog items, assign them to
the next sprint and move the tasks being removed from the current sprint
to those backlog items.
Is there any other way?