A scene music post's 00- files go with its tracks

"[01/13] - "00-ammar-turk_uit_de_kroeg-single-web-nl-2022-cover.jpg"" with
"[05/13] - "01-ammar-turk_uit_de_kroeg.mp3"": the tracks are keyed by
artist and total (SCENE_TRACK), but the cover, nfo, sfv and m3u were releases
of their own (2,630 single files of Meow in a.b.ftn). Under a bare counter a
00- stem takes the same key.

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

tests/unit/release/identity.spec.ts

@@ -344,6 +344,12 @@ test.group('release / par2 names', () => {
     assert.equal(track('06', '02-repiet_-_dont_think_twice_(extended_mix).mp3').key, track('07', '03-repiet_-_other_song.mp3').key)
     assert.equal(track('06', '02-repiet_-_dont_think_twice_(extended_mix).mp3').name, 'repiet')
     assert.equal(track('01', '01-2bm_mq-real_rap_(intro).mp3').name, '2bm_mq')
+    const meow = (i: string, n: string) => id(`[${i}/13] - "${n}" yEnc`, n)
+    const tracks = meow('05', '01-ammar-turk_uit_de_kroeg.mp3').key
+    for (const n of ['00-ammar-turk_uit_de_kroeg-single-web-nl-2022-cover.jpg', '00-ammar-turk_uit_de_kroeg-single-web-nl-2022.nfo', '00-ammar-turk_uit_de_kroeg-single-web-nl-2022.sfv']) {
+      assert.equal(meow('01', n).key, tracks, n)
+    }
+    assert.notEqual(meow('01', '00-frank_van_etten-wie_heeft_jouw_lach_gestolen-single-web-nl-2022-cover.jpg').key, tracks)
   })
 
   test('a host and a sponsor without a counter name no upload', ({ assert }) => {