Using the new Reference Edits window, you can now list the edits that have been made to a reference, copy reference edits to the Script Editor, and remove reference edits from an unloaded reference.
A window listing all of the edits made to the selected reference appears.
To copy a reference edit to the Script Editor
A window listing all of the edits made to the selected reference appears.
To remove reference edits from an unloaded reference
A window listing all of the edits made to the selected reference appears.
You open B.ma and modify C.ma, and save. If you open A.ma, you can't remove the edits made from B.ma to C.ma. To do so, you would have to re-open B.ma and then remove the edits.