What does it mean when Source Control Explorer shows both branch and merge for a changeset?

Question

I am trying to understand the history of my codebase, which resides in TFS 2005, and I encountered a changeset where all changes were marked as both branch and merge.

Answer 1

This might make sense if the file were created during a branch operation and changes from the source branch were then merged into the new branch without having checked in at any point.