You should get rid of them to provide more metadata about this software.
testing migrations
This package will soon be part of the auto-libxml2 transition. You might want to ensure that your package is ready for it.
You can probably find supplementary information in the
debian-release
archives or in the corresponding
release.debian.org
bug.
Migration status for virt-manager (1:5.0.0-1 to 1:5.0.0-3): Waiting for test results or another package, or too young (no action required now - check later)