Missing pre-NGS tracklist edit in release edit history → Edit track name (historic) edits are absent from their release edit histories

I cannot find the edit that changed Interude1 into ✡■■❏◆■❃❄❍❄■▼ ✈✳❄❁❈◆❄ ✒✉ (and al lthose non song 6 tracks) in any of the releases that shared this trcaklist over time :
https://musicbrainz.org/release/ff852449-2532-490c-b031-c1be6fad21e4/edits
https://musicbrainz.org/release/b80a3610-b732-3cc1-a65f-3253ca88a2b0/edits
It was edited pre-NGS around Edit #9191933 (notice the edit note saying that The 1st of a set of 7 edits).
So in fact I can trace it down to :
https://musicbrainz.org/edit/9191933
https://musicbrainz.org/edit/9191934
https://musicbrainz.org/edit/9191935
https://musicbrainz.org/edit/9191936
https://musicbrainz.org/edit/9191937
https://musicbrainz.org/edit/9191938
https://musicbrainz.org/edit/9191939
But it's not the edits I'm looking for, btw (just some further fixes) and none are where we would want them.