Changes touching this path

• loot apply-patch closes the preimage gaps #1992 and #1995 left: an add is refused over a path holding bytes other than the ones it adds, which it used to write in front of them, a modify stanza with no hunks is refused, which wrote an empty file at an absent path, a deletion of an absent path is refused rather than reported as done, and a patch that writes or deletes one path in more than one stanza or renames one old path twice is refused. the similarity index, dissimilarity index and index rows are read past, so a git format-patch -M rename applies as a rename where it used to write an empty file at the new path, and another unread row above hunks is refused by name. apply_strict now reads a deleted last line without the no-newline marker as a claim that the file ends with a newline, the deletion arm compares through apply_strict, and the writer no longer discards a removal error. ten new spawned-binary tests went red before the change (deletion 5 passed, 2 failed; preimage 0 passed, 4 failed; rename 8 passed, 4 failed), a new pin for a deleted file that grew a line holds the unified deletion check, and over the apply-patch and format-patch test files the pins went red with the add check removed (46 passed, 2 failed), the hunkless modify refusal removed (47 passed, 1 failed), the git rows unread (47 passed, 1 failed), the unread-row refusal removed (46 passed, 2 failed), an absent deletion planned as a delete (47 passed, 1 failed), the shared path check removed (47 passed, 1 failed), the shared rename source check removed (47 passed, 1 failed), the newline claim removed (46 passed, 2 failed) and leftover lines ignored by the deletion check (47 passed, 1 failed). the format-patch round trips stay green, ADR 0082 gains section 4, one table of what each stanza class checks, its rename paragraph no longer claims more than the hunks compare, CONTEXT.md states the rules, and the workspace suite is green (#1997) 15e2d13e · 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.