Negative Permissions Use & Place don't work ! :(

users:
    pomme72:
        group:
        - Bucheron
        permissions:
        - permissions.*
groups:
    Voyageur:
        default: true
        permissions:
        - bonjour.non
    Bucheron:
        default: false
        permissions:
        - -modifyworld.blocks.place.6
        - -modifyworld.item.use.274
        - -modifyworld.item.use.stonepickaxe
        - -modifyworld.item.use.285
        - -modifyworld.item.use.278
        - -modifyworld.item.use.257
        - -modifyworld.item.use.256
        - -modifyworld.item.use.277
        - -modifyworld.item.use.284
        - -modifyworld.item.use.273
        - -modifyworld.item.use.291
        - -modifyworld.item.use.292
        - -modifyworld.item.use.293
        - -modifyworld.item.use.294
        - -modifyworld.item.use.272
        - -modifyworld.item.use.267
        - -modifyworld.item.use.283
        - -modifyworld.item.use.276
        - -modifyworld.items.pickup.363
        - -modifyworld.items.pickup.365
        - -modifyworld.items.pickup.319
        - -modifyworld.item.use.346
        - -modifyworld.blocks.interact.61
        - -modifyworld.blocks.interact.62
        - -modifyworld.blocks.interact.379
        - -modifyworld.blocks.interact.116
        - -modifyworld.blocks.place.116
        - -modifyworld.blocks.place.379
        - -modifyworld.item.use.261
        - -incraftible.craft.armor.iron.*
        - -incraftible.craft.armor.gold.*
        - -incraftible.craft.armor.diamond.*
        - -incraftible.craft.tools.iron.*
        - -incraftible.craft.tools.gold.*
        - -incraftible.craft.tools.diamond.*
        - modifyworld.*
    Dieu:
        default: false
        permissions:
        - '*'