Incorrect cwd when call vim with '-c cd xxx' about coc.nvim HOT 3 OPEN

Can't reproduce with vim 9.1 and nvim. Here's my steps:

1. mkdir -p ~/A and mkdir -p ~/B
2. cd ~/A
3. vim B/test4.txt -c "cd ~/B"
4. CocList mru, B/test4.txt exists

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@fannheyward

3. vim B/test4.txt -c "cd ~/B"

Missing the ~/ before B, which create a folder under current folder A. C-g will print ~/A/B/test4.txt.
Using vim ~/B/test4.txt -c "cd ~/B" instead.

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Reproduced. The core issue is workspace root detecting.

vim ~/B/test4.txt -c "cd ~/B" still uses ~/A as cwd, by default, mru only lists files that under current cwd, that's why test4 is missing. You can use :CocList mru -A to list all.

https://github.com/neoclide/coc-lists/blob/720f8713860a6c45be6aac6b042416c9de680173/src/mru.ts#L95

coc.nvim didn't change the root at cmd -c "cd ~/B". Looks like vim didn't fire DirChanged on the cmd.

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