bug: attempt to index field 'actions'

After https://github.com/nvim-tree/nvim-tree.lua/commit/43a3bb4b26b4578a704f24bb6a4889b454c0eb65 `nvim --clean --cmd 'se rtp^=.' --cmd 'lua require("nvim-tree").setup{}'` ``` E5108: Lua: ./lua/nvim-tree/config.lua:511: attempt to index field 'actions' (a nil value) ```