Fonts module removes previously-installed font

See https://github.com/rrenomeron/bootc-images/blob/main/recipes/silverblue-tr/stable.yml The sub-recipe ``features/desktop-common.yml`` installs Intel One Mono from Github Releases, and ``features/cascadia-code.yml`` installs Cascadia Code. If I remove the bit in ``features/cascadia-code.yml`` where I re-install Intel One Mono, the image only has Cascadia Code.