Accepting item in command mode appends to trigger characters

[antonk52]

Make sure you have done the following

• I have updated to the latest version of blink.cmp
• I have read the README

Bug Description

When attempting to edit a file by entering a file path in command mode, selecting an item from completion menu inserts full completion item to what triggered the completion.

Example in command mode let's say you want to edit ~/.config/nvim/init.lua, you type :e ~/.con and you see the completion menu and want to select ~/.config, you press to select the item and to insert it. Your command line now has :e ~/.~/.config/ which is an incorrect file path. Expected behaviour: the command line has :e ~/.config/

Relevant configuration

{
    'saghen/blink.cmp',
    version = 'v0.*',
    opts = {}
}

neovim version

0.10.3

blink.cmp version: branch, tag, or commit

0.9.2

[b0o]

Related: #46, #541, #555

[MrConnorKenway]

Maybe related: #887

[Aym3nJ]

it seems the bug still persist if the with any command with this syntax :command [range] [arguments]
for example :set when writing :set sy^y ( so far good you get :set syntax) :set sy^y=js^y (you get :set json instead of :set syntax=json)

this could be fixed with

-- line 91 lua/blink/cmp/sources/cmdline/init.lua
        if not has_prefix and cmd == 'lua' or 'set' then new_text = current_arg_prefix .. completion end

but then again the bug will persist in other cases like :w ~/dir1^y/dir2^y