Support for nvim-cmp cmdline completion

[resurrexi]

Will there be support to include cmdline registration for nvim-cmp? As of now, if I try to run :Dbee open, I will get an error:

Error executing vim.schedule lua callback: Vim:E5108: Error executing Lua function: vim/shared.lua:0: t: expected table, got nil
stack traceback:
        [C]: in function 'error'
        vim/shared.lua: in function 'validate'
        vim/shared.lua: in function <vim/shared.lua:0>
        [C]: in function 'getcompletion'
        ...cal/share/nvim/lazy/cmp-cmdline/lua/cmp_cmdline/init.lua:136: in function 'exec'
        ...cal/share/nvim/lazy/cmp-cmdline/lua/cmp_cmdline/init.lua:202: in function 'complete'
        ...lyang/.local/share/nvim/lazy/nvim-cmp/lua/cmp/source.lua:341: in function 'complete'
        ...s/lyang/.local/share/nvim/lazy/nvim-cmp/lua/cmp/core.lua:308: in function 'complete'
        ...s/lyang/.local/share/nvim/lazy/nvim-cmp/lua/cmp/core.lua:178: in function 'autoindent'
        ...s/lyang/.local/share/nvim/lazy/nvim-cmp/lua/cmp/core.lua:170: in function 'on_change'
        ...s/lyang/.local/share/nvim/lazy/nvim-cmp/lua/cmp/init.lua:366: in function 'callback'
        .../.local/share/nvim/lazy/nvim-cmp/lua/cmp/utils/async.lua:165: in function <.../.local/share/nvim/lazy/nvim-cmp/lua/cmp/utils/async.lua:163>
stack traceback:
        [C]: in function 'getcompletion'
        ...cal/share/nvim/lazy/cmp-cmdline/lua/cmp_cmdline/init.lua:136: in function 'exec'
        ...cal/share/nvim/lazy/cmp-cmdline/lua/cmp_cmdline/init.lua:202: in function 'complete'
        ...lyang/.local/share/nvim/lazy/nvim-cmp/lua/cmp/source.lua:341: in function 'complete'
        ...s/lyang/.local/share/nvim/lazy/nvim-cmp/lua/cmp/core.lua:308: in function 'complete'
        ...s/lyang/.local/share/nvim/lazy/nvim-cmp/lua/cmp/core.lua:178: in function 'autoindent'
        ...s/lyang/.local/share/nvim/lazy/nvim-cmp/lua/cmp/core.lua:170: in function 'on_change'
        ...s/lyang/.local/share/nvim/lazy/nvim-cmp/lua/cmp/init.lua:366: in function 'callback'
 Dbee 󰀫 .../.local/share/nvim/lazy/nvim-cmp/lua/cmp/utils/async.lua:165: in function <.../.local/share/nvim/lazy/nvim-cmp/lua/cmp/utils/async.lua:163>

I found the only way to prevent this error from popping up is to ignore Dbee command when setting up nvim-cmp. E.g.

cmp.setup.cmdline(":", {
  sources = {
    {name = "path"},
    {
      name = "cmdline",
      option = {
        ignore_cmds = {
          "Man", -- default
          "!", -- default
          "Dbee" -- ignore due to errors being triggered for this plugin
        }
      }
    }
  }
})