Truncated changelog leads to file conflict with MultiArch: same

Hi

I've an issue with one of my sponsored package (libisoburn [1])

Mulitarch hinter mentions:

 There are issues with the multiarch metadata for this package.

    libisoburn-dev conflicts on /usr/share/doc/libisoburn-dev/changelog.Debian.gz on loong64 <-> amd64, arm64, armhf and 4 more
    libisoburn1t64 conflicts on /usr/share/doc/libisoburn1t64/changelog.Debian.gz on loong64 <-> amd64, arm64, armhf and 4 more

As suggested by the wiki page, I've downloaded and compared loong64 and amd64 binary packages.

Turns out that both have a truncated changelog. But the loong64 package has less entries.

I see that these packages were built at different time (2026-01-17 vs 2026-03-07). I can only guess that truncation is time based so the cut line has moved, hence the difference.

I think this is a bug. A package rebuild should not lead to differences in truncated changelog.

What do you think ?

Where should I log a bug ?

All the best

Dod

[1] https://tracker.debian.org/pkg/libisoburn

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