SIGSEGV when typing ":TSInstall "

Start by reproducing the crash while typing :TSInstall with the shown wilder.nvim configuration, then inspect the stack entry points f_getcompletion, ExpandFromContext, nlua_call_user_expand_func, and nlua_call. Use the provided gdb backtrace and Neovim v0.8.3 environment as the baseline; done means the command-line completion path no longer causes a SIGSEGV.

Describe the bug

When typing ":TSInstall ", nvim crashes with the following stacktrace:

coredumctl dump nvim

           PID: 1540947 (nvim)
           UID: 1000 (ea)
           GID: 1000 (ea)
        Signal: 11 (SEGV)
     Timestamp: Tue 2023-02-21 09:30:00 CST (37s ago)
  Command Line: nvim
    Executable: /home/ea/.local/share/bob/stable/nvim-linux64/bin/nvim
 Control Group: /user.slice/user-1000.slice/user@1000.service/app.slice/app-org.gnome.Terminal.slice/vte-spawn-5916f06e-e16f-4051-b5fb-549c834547ee.scope
          Unit: user@1000.service
     User Unit: vte-spawn-5916f06e-e16f-4051-b5fb-549c834547ee.scope
         Slice: user-1000.slice
     Owner UID: 1000 (ea)
       Boot ID: 9df5dcf9237842b3a3f9a2ce3de77bc7
    Machine ID: b2215c86dec8459aae9a219024cb0138
      Hostname: pc
       Storage: /var/lib/systemd/coredump/core.nvim.1000.9df5dcf9237842b3a3f9a2ce3de77bc7.1540947.1676943000000000.zst (present)
  Size on Disk: 5.3M
       Message: Process 1540947 (nvim) of user 1000 dumped core.
                
                Stack trace of thread 1540947:
                #0  0x00005591eb8a4845 n/a (/home/ea/.local/share/bob/stable/nvim-linux64/bin/nvim + 0x1f2845)
                ELF object binary architecture: AMD x86-64

sudo coredumpctl gdb PID

Reading symbols from /home/ea/.local/share/bob/stable/nvim-linux64/bin/nvim...
[New LWP 1540947]
[New LWP 1540948]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `nvim'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00005591eb8a4845 in nlua_call ()
[Current thread is 1 (Thread 0x7f513d026740 (LWP 1540947))]
(gdb) where
#0  0x00005591eb8a4845 in nlua_call ()
#1  0x00005591ebad55f6 in lj_BC_FUNCC ()
#2  0x00005591ebac19f6 in lua_pcall (L=0x7f513d33d380, nargs=<optimized out>, nresults=1, 
    errfunc=<optimized out>) at lj_api.c:1116
#3  0x00005591eb89cda8 in nlua_pcall ()
#4  0x00005591eb8a25ea in nlua_call_user_expand_func ()
#5  0x00005591eb7aa400 in ExpandFromContext ()
#6  0x00005591eb7aaa4e in ExpandOne ()
#7  0x00005591eb7ac85c in f_getcompletion ()
#8  0x00005591eb7f1356 in call_internal_func ()
#9  0x00005591eb816194 in call_func ()
#10 0x00005591eb8a4ab6 in nlua_call ()
#11 0x00005591ebad55f6 in lj_BC_FUNCC ()

To Reproduce

Another plugin is relativated

  ["gelguy/wilder.nvim"] = {
    config = function()
      local wilder = require('wilder')
      wilder.setup({modes = {':', '/', '?'}})
    end,
  },

when input "TSInstall"and "<space" in cmdline, no autocomplete commands. neovim crash

Expected behavior

No response

Output of :checkhealth nvim-treesitter

nvim-treesitter: require("nvim-treesitter.health").check()
========================================================================
## Installation
  - OK: `tree-sitter` found 0.20.7 (parser generator, only needed for :TSInstallFromGrammar)
  - OK: `node` found v19.6.0 (only needed for :TSInstallFromGrammar)
  - OK: `git` executable found.
  - OK: `cc` executable found. Selected from { vim.NIL, "cc", "gcc", "clang", "cl", "zig" }
    Version: cc (GCC) 12.2.1 20230201
  - 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 = "5.15.91-1-MANJARO",
  sysname = "Linux",
  version = "#1 SMP PREEMPT Wed Feb 1 12:03:19 UTC 2023"
}

## Parser/Features         H L F I J
  - lua                 ✓ ✓ ✓ ✓ ✓
  - html                ✓ ✓ ✓ ✓ ✓
  - css                 ✓ . ✓ ✓ ✓
  - c                   ✓ ✓ ✓ ✓ ✓
  - help                ✓ . . . ✓
  - vim                 ✓ ✓ ✓ . ✓
  - python              ✓ ✓ ✓ ✓ ✓
  - rust                ✓ ✓ ✓ ✓ ✓

  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 v0.8.3
Build type: Release
LuaJIT 2.1.0-beta3
Compiled by runner@fv-az183-550

Features: +acl +iconv +tui
See ":help feature-compile"

   system vimrc file: "$VIM/sysinit.vim"
  fall-back for $VIM: "/share/nvim"

Run :checkhealth for more info

Additional context

No response