libext2fs-dev is declared Multi-Arch: same, but fails to coinstall.

The file /usr/include/ext2fs/ext2_types.h is shared by libext2fs-dev
version 1.47.4-1 as present in forky|unstable with varying content.

Please ensure that shared files have bit-identical content across
architectures, move architecture-dependent files to
architecture-dependent paths or remove the Multi-Arch: same field.

Kind regards

Helmut Grohne