filesystem.manifest-minimal-remove should not contain system-wide language packages from filesystem.manifest-remove

[natanjunges]

Describe the bug

The ubiquity code assumes they are not present in filesystem.manifest-minimal-remove, and specifically uses filesystem.manifest-minimal-remove to only remove language packages of apps removed in minimal install. This results in the language selected during install being removed in a minimal install when using the files generated by Cubic.

To Reproduce

1. Generate an ISO using Cubic;
2. When installing it choose a language different from English;
3. Select the minimal install;
4. Check the language used in the resulting system.

Expected behavior

The system-wide language packages should be kept in a minimal install.

OS Information (please complete the following information):

• OS/Distro Name: Ubuntu
• OS Version Ubuntu 22.04

Cubic Information (please complete the following information):

• Cubic Version: 2024.02-86
• ISO Customizing: ubuntu-22.04.4-desktop-amd64.iso
• Download Link: https://releases.ubuntu.com/22.04/ubuntu-22.04.4-desktop-amd64.iso

[natanjunges]

Checking the original files, there are packages listed in both files: hunspell-*, hyphen-*, libreoffice-help-*, libreoffice-l10n-*, mythes-* and thunderbird-locale-*. They are language packages specific to apps removed in the minimal install.

[natanjunges]

The language packages that should not be present in filesystem.manifest-minimal-remove are gnome-user-docs-*, language-pack-*, language-pack-gnome-* and w*.

[PJ-Singh-001]

Thanks for the bug and the detailed research!