Description

More bug fixes from fuzzing:

Avoid a division by zero
Avoid some un-associated pointer for the current calculation plus no ACE
Avoid some uninitialized variable
The Mueller functional was leading to a segfault.
Improve some messages: avoid void libxc references that correspond to notes, and add a line jump in a fatal message

Checklist

I have checked that my code follows the Octopus coding standards
I have added tests for all the new features added in this request.

Edited Jul 30, 2025 by Nicolas Tancogne-Dejean