nix-shell:9: key: attempt to set associative array to scalar

[Robotix-00]

When running nix-shell in zsh, I am greeted by the aboth mentioned error nix-shell:9: key: attempt to set associative array to scalar. This doesn't appear to happen when prefixing the nix-shell call with "command".
I am using the newest versions of zsh-nix-shell (v0.7.0) and zsh (5.9).
Is there a fix other than putting "command" in front of every nix-shell call?

Technical details

1. command nix-shell -p nix-info --run "nix-info -m"

• system: "x86_64-linux"
• host os: Linux 6.3.2, NixOS, 23.05 (Stoat), 23.05.20230517.e6e3899
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.15.0
• channels(root): "nixos"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos

2. zsh --version
   zsh 5.9 (x86_64-pc-linux-gnu)

[Robotix-00]

I had the set option "ksharrays" in my zshrc which causes arrays to start at index 0 instead of the default 1.
Unsetting this option and everything works flawless.