Describe the bug
I am trying to open a new window using a shell (zsh) script and I can't seem to set the title to a static value. It seems to just end up as whatever is running in the shell e.g. neovim. I have set DISABLE_AUTO_TITLE=true in my .zshrc.

This used to work before updating kitty recently (not sure which version I came from, apologies).

Using kitty 0.20.3.

EDIT: ok, I have checked, it works fine in 0.19.3.

To Reproduce
Script is as follow:

#!/bin/zsh

/Applications/kitty.app/Contents/MacOS/kitty --title="vimwiki" --config="/Users/mjw/.config/kitty/kitty.conf" --session="/Users/mjw/.config/kitty/vimwiki_session" --directory="/Users/mjw/vimwiki" &

Contents of vimwiki_session:

cd ~/vimwiki
title vimwiki
launch /bin/zsh -c "nvim index.md; /bin/zsh"

...and then the window title ends up as zsh.

If I change the launch line to launch nvim index.md then the window title ends up as nvim

I I change to the config to NONE I still get zsh as the window title.

Environment details
OS: macOS Catalina