shared.lua:91: attempt to index a nil value on main branch when selecting outer class

Describe the bug When running require "nvim-treesitter-textobjects.select".select_textobject("@class.outer", "textobjects") I get this big error:

E5108: Error executing lua ...r-textobjects/lua/nvim-treesitter-textobjects/shared.lua:91: attempt to index a nil value
stack traceback:                                                                                                       
        ...r-textobjects/lua/nvim-treesitter-textobjects/shared.lua:91: in function 'fn'                               
        ...r-textobjects/lua/nvim-treesitter-textobjects/shared.lua:39: in function 'get_query_matches'                
        ...r-textobjects/lua/nvim-treesitter-textobjects/shared.lua:167: in function 'fn'                              
        ...2/share/nvim/runtime/lua/vim/treesitter/languagetree.lua:491: in function 'for_each_tree'                   
        ...r-textobjects/lua/nvim-treesitter-textobjects/shared.lua:164: in function 'get_capture_ranges_recursively'  
        ...r-textobjects/lua/nvim-treesitter-textobjects/shared.lua:359: in function 'textobject_at_point'             
        ...r-textobjects/lua/nvim-treesitter-textobjects/select.lua:155: in function 'select_textobject'               
        [string ":lua"]:1: in main chunk

To Reproduce Steps to reproduce the behavior:

Configure nvim-treesitter-textobjects as below (lazy.nvim spec):

{
    "nvim-treesitter/nvim-treesitter-textobjects",
    branch = "main",
    opts = {
        select = {
            -- Automatically jump forward to textobj, similar to targets.vim
            lookahead = true,
            -- You can choose the select mode (default is charwise 'v')
            --
            -- Can also be a function which gets passed a table with the keys
            -- * query_string: eg '@function.inner'
            -- * method: eg 'v' or 'o'
            -- and should return the mode ('v', 'V', or '<c-v>') or a table
            -- mapping query_strings to modes.
            selection_modes = {
                ["@parameter.outer"] = "v", -- charwise
                ["@function.outer"] = "V", -- linewise
                ["@class.outer"] = "<c-v>", -- blockwise
            },
            -- If you set this to `true` (default is `false`) then any textobject is
            -- extended to include preceding or succeeding whitespace. Succeeding
            -- whitespace has priority in order to act similarly to eg the built-in
            -- `ap`.
            --
            -- Can also be a function which gets passed a table with the keys
            -- * query_string: eg '@function.inner'
            -- * selection_mode: eg 'v'
            -- and should return true of false
            include_surrounding_whitespace = false,
        },
    },
    keys = {
        {
            -- operator pending or visual
            mode = { "x", "o" },
            "af",
            function()
                require("nvim-treesitter-textobjects.select").select_textobject(
                "@function.outer", "textobjects")
            end,
            desc = "around function",
        },
        {
            -- operator pending or visual
            mode = { "x", "o" },
            "if",
            function()
                require("nvim-treesitter-textobjects.select").select_textobject(
                "@function.inner", "textobjects")
            end,
            desc = "inside function",
        },
        {
            -- operator pending or visual
            mode = { "x", "o" },
            "ac",
            function()
                require("nvim-treesitter-textobjects.select").select_textobject("@class.outer",
                    "textobjects")
            end,
            desc = "around class",
        },
        {
            -- operator pending or visual
            mode = { "x", "o" },
            "ic",
            function()
                require("nvim-treesitter-textobjects.select").select_textobject("@class.inner",
                    "textobjects")
            end,
            desc = "inside class",
        },
    },
},

Press dac or run lua require "nvim-treesitter-textobjects.select".select_textobject("@class.outer", "textobjects") with the cursor within a python class.

Expected behavior The class definition is deleted/selected

Output of :checkhealth nvim-treesitter


==============================================================================
nvim-treesitter: require("nvim-treesitter.health").check()

Installation ~
- WARNING `tree-sitter` executable not found (parser generator, only needed for :TSInstallFromGrammar, not required for :TSInstall)
- WARNING `node` executable not found (only needed for :TSInstallFromGrammar, not required for :TSInstall)
- OK `git` executable found.
- OK `cc` executable found. Selected from { vim.NIL, "cc", "gcc", "clang", "cl", "zig" }
  Version: gcc (GCC) 13.3.0
- OK Neovim was compiled with tree-sitter runtime ABI version 14 (required >=13). Parsers must be compatible with runtime ABI.

OS Info:
{
  machine = "x86_64",
  release = "6.6.54",
  sysname = "Linux",
  version = "#1-NixOS SMP PREEMPT_DYNAMIC Fri Oct  4 14:30:05 UTC 2024"
} ~

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  Legend: H[ighlight], L[ocals], F[olds], I[ndents], In[j]ections
         +) multiple parsers found, only one will be used
         x) errors found in the query, try to run :TSUpdate {lang} ~

Output of nvim --version

NVIM v0.10.2
Build type: Release
LuaJIT 2.1.1713773202
Run "nvim -V1 -v" for more info

Additional context This is using the main branch rather than master, as I am using nvim 0.10

nvim-treesitter / nvim-treesitter-textobjects

shared.lua:91: attempt to index a nil value on main branch when selecting outer class #703