Changes touching this path

• a second renderer stops being able to disagree with the first about which paths changed, because "what changed between two points" is now one seam taking (from, to, pathspec) whose endpoints may be a recorded change or the live working tree, and the six-rung content ladder and the in-the-clear plaintext count moved into it — so a renderer formats a number it is handed instead of tallying its own, and status and diff stop computing the same delta twice (#1541) 289ddd4e · dbf3dbe6…

Renames are not followed. loot's tree maps a path to an address, so a rename is a delete and an add. This list is the history of the name, not of the bytes.