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