Bug#1076235: grub-efi-arm64-unsigned: trying to overwrite '/usr/lib/grub/arm64-efi/monolithic/gcdaa64.efi', which is also in package grub-efi-arm64-bin 2.12-2

[Chris Hofstaedtler]

Package: grub-efi-arm64-unsigned
Version: 2.12-4
Severity: serious
Control: tags -1 + sid

Upgrading grub on aarch64 fails, like this:

Preparing to unpack .../12-grub-efi-arm64_2.12-4_arm64.deb ...
Unpacking grub-efi-arm64 (2.12-4) over (2.12-2) ...
Preparing to unpack .../13-grub2-common_2.12-4_arm64.deb ...
Unpacking grub2-common (2.12-4) over (2.12-2) ...
Selecting previously unselected package grub-efi-arm64-unsigned.
Preparing to unpack .../14-grub-efi-arm64-unsigned_2.12-4_arm64.deb ...
Unpacking grub-efi-arm64-unsigned (2.12-4) ...
dpkg: error processing archive /tmp/apt-dpkg-install-GFZQXm/14-grub-efi-arm64-unsigned_2.12-4_arm64.deb (--unpack):
 trying to overwrite '/usr/lib/grub/arm64-efi/monolithic/gcdaa64.efi', which is also in package grub-efi-arm64-bin 2.12-2
Preparing to unpack .../15-grub-efi-arm64-bin_2.12-4_arm64.deb ...
Unpacking grub-efi-arm64-bin (2.12-4) over (2.12-2) ...
Preparing to unpack .../16-grub-common_2.12-4_arm64.deb ...
Unpacking grub-common (2.12-4) over (2.12-2) ...
...
Errors were encountered while processing:
 /tmp/apt-dpkg-install-GFZQXm/14-grub-efi-arm64-unsigned_2.12-4_arm64.deb
Error: Sub-process /usr/bin/dpkg returned an error code (1)

I imagine additional relationships need to be declared.

Chris