Thanks, and I agree with the above analysis: the buildd logs confirm
that r-cran-svglite was binNMUd recently on armhf only, and debci says
r-cran-svglite/armhf is currently broken in testing but working in
testing + R 4.5.0,
https://ci.debian.net/packages/r/r-cran-svglite/testing/armhf/
r-base 4.5 is expected to migrate along with the fixes for some other bugs:
https://lists.debian.org/debian-r/2025/04/msg00016.html
Would it help to upload a new r-cran-svglite that explicitly depends on
r-base-core (>= 4.5.0~) ? That's what I'm doing with r-cran-rlang, the
other package known to break when built in R 4.5 and run in R 4.4, but
r-cran-rlang was caught (by debci) before it migrated, while
r-cran-svglite is already broken in testing.
