Changes

function CategoryTree:create(data)

function CategoryTree:create(data)

data = data or {}

data = data or {}

data._category = data.category

data.mode = data.mode or "pages"

data._mode = data.mode or "pages"

data.depth = data.depth or "0"

data._depth = data.depth or "0"

data.__tostring = self._tostring

data.__tostring = self._tostring

return self.__index.create(self, data)

return self.__index.create(self, data)