Counters: a total padded wider than its index is none; report diff on shared ranges

- "Very Best Of The Who [01/010]", "[02/020]", "[07/070]": a posting tool's
  total of index×10, so every track had a total of its own and was a
  release of its own. A total zero-padded wider than its index is no
  counter ("[001/010]" still is).
- corpus_sweep.py report compares builds over the ranges both replayed (the
  corpus grows between builds).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

lib/release/identity.ts

@@ -193,10 +193,18 @@ export function imageSet(stem: string): string {
   return /(?<!\d)0*[1-9]\d{4,}/.test(set) ? '' : set
 }
 
+/**
+ * A total a posting tool wrote wrong: zero-padded wider than the index ("[01/010]", "[02/020]", "[07/070]": each
+ * track of an album had a total of its own, so a release of its own; LOG.md 2026-10-12 (15)).
+ */
+function brokenTotal(index: string, total: string): boolean {
+  return total.length > 1 && total.startsWith('0') && total.length > index.length
+}
+
 export function counterTotal(subject: string): number | undefined {
   const s = subject.replace(/"[^"]*"/g, ' ')
   const plain = /\[(\d+)\/(\d+)\]|\((\d+)\/(\d+)\)/.exec(s)
-  if (plain) return Number(plain[2] ?? plain[4])
+  if (plain) return brokenTotal(plain[1] ?? plain[3], plain[2] ?? plain[4]) ? undefined : Number(plain[2] ?? plain[4])
   // Dates are no counters ("Avira AntiVir Rescue System 08-29-2011.rar", "… 27-02-2011", "18-08-2012"):
   // read as "8 of 29", such a release showed a wrong file total and counted as incomplete.
   const undated = s.replace(DATES, ' ')
@@ -263,7 +271,7 @@ export function releaseIdentity(input: ReleaseInput): ReleaseIdentity | null {
   const poster = randomPoster(input.poster) ? '' : input.poster
   const counter = /\[(\d+)\/(\d+)\]/.exec(input.subject)
   // The post rule's key takes the [i/M] total (as when the catalog started); the release's file total any counter's.
-  const postTotal = counter ? Number.parseInt(counter[2], 10) : undefined
+  const postTotal = counter && !brokenTotal(counter[1], counter[2]) ? Number.parseInt(counter[2], 10) : undefined
   const stem = fileStem(input.name)
 
   if (input.weak) {