Ubuntu `lxc profile show default > default.yml'` on zsh fails to redirect

Issue Type: Bug

From settings select shell /bin/zsh or /usr/bin/zsh

then if in the vscode terminal, I redirect output of lxc profile I get an empty file. This is true for the snap installs of both code and code-insiders

% lxc profile show default > t1.yml
% wc t1.yml
0 0 0 t1.yml

If I do this same operation in a normal ubuntu 20.04 terminal I get the expected result:

% lxc profile show default > t1.yml
% wc t1.yml
 14  26 209 t1.yml

This file has the expected output.

% cat t1.yml                  
config: {}
description: Default LXD profile
devices:
  eth0:
    name: eth0
    network: lxdbr0
    type: nic
  root:
    path: /
    pool: default
    type: disk
name: default
used_by:
- /1.0/instances/fossa

whereas a simple redirect seems to work in the vscode terminal:

% ls > ls.txt                      
[0] % wc ls.txt                 
  28   28 1151 ls.txt

fails in vscode shell set to /usr/bin/bash too:

$ lxc profile show default > t1.yml
$ wc t1.yml 
> 0 0 0 t1.yml

I reported this on the container users forum too - https://discuss.linuxcontainers.org/t/lxc-redirecting-profile-into-text-file-fails-identified-as-vscode-terminal-problem/9435

VS Code version: Code - Insiders 1.52.0-insider (24b28f57be22fe3029cb17a1dd72d8d9c2d6468b, 2020-11-06T05:40:12.937Z) OS version: Linux x64 5.4.0-52-generic snap

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Load (avg)	0, 0, 1
Memory (System)	15.42GB (0.23GB free)
Process Argv	. --no-sandbox --crash-reporter-id 446f8467-2185-4e65-b6f3-71361ea528a8
Screen Reader	no
VM	50%
DESKTOP_SESSION	ubuntu
XDG_CURRENT_DESKTOP	Unity
XDG_SESSION_DESKTOP	ubuntu
XDG_SESSION_TYPE	x11