This file is indexed.

/usr/share/mime-info/love.keys is in love 0.9.1-3ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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application/x-love-game
        description: Löve Game
        [es]description: Juego de Löve
        icon_filename: love-game-64.png
        default_action_type=application
        short_list_application_ids_for_novice_user_level=love
        short_list_application_ids_for_intermediate_user_level=love
        short_list_application_ids_for_advanced_user_level=love