Under some circumstances it is useful to reset a group. Resetting a group means taking a node from an existing group and using it to form a brand new group of size 1. You can then grow the new group as normal by adding additional nodes to it. In this way, you can create an additional group that has the exact same data as the original group.
This functionality is useful when a copy of an existing group needs to be made for use at some other site.
To reset a group, use the DbResetRepGroup utility.