Version 4.5.2+ds-1 of mfem is marked for autoremoval from testing on Wed 23 Aug 2023. It is affected by #1042038. You should try to prevent the removal by fixing these RC bugs.
Among the 2 debian patches
available in version 4.5.2+ds-1 of the package,
we noticed the following issues:
2 patches
where the metadata indicates that the patch has not yet been forwarded
upstream. You should either forward the patch upstream or update the
metadata to document its real status.