Refactor `BKE_pose_channel_copy_data()` so that it iterates over the entire armature only once (instead of twice), and to use a `switch` instead of a chain of `if`/`else if`/`else` clauses. No functional changes.
Refactor `BKE_pose_channel_copy_data()` so that it iterates over the entire armature only once (instead of twice), and to use a `switch` instead of a chain of `if`/`else if`/`else` clauses. No functional changes.