I'm just reiterating the conversation I had with Santiago for transparency and to explain what happened here:
This bug was originally tagged with "sid trixie". This means that the for the purposes of archival, the BTS only needs to care if the bug has been fixed in sid and trixie, and it should ignore whether it should be fixed in bookworm. When the bug was fixed in sid and trixie, the BTS archived it. You rarely want to tag a bug with any of the distribution tags. [The major exception is where a bug is present in a distribution because of the versions of other packages in that distribution, not latently present in the package itself, for example when an interface is deprecated/removed.] -- Don Armstrong https://www.donarmstrong.com This isn't life in the fast lane, it's life in the oncoming traffic -- Terry Pratchett