Nix-shell reevaluating shellHook from shell configured by nix-shell some_file.nix for next new nix-shell -p

[SeaOfCrystalGreens]

nix-shell seems to rerun shellHook from

pkgs.mkShell {
  buildInputs = with pkgs; [ nodejs_21 ];
  shellHook = ''
    echo n2.nix
  '';
}

for most recently used file.nix after

> nix-shell file.nix

when invoking nix-shell with --package parameter in any directory.
When invoking only nix-shell and ommiting --package

error: getting status of '/.../default.nix': No such file or directory

is emited.

Steps To Reproduce

1. Create directory structure test/shells
2. Crate file new_shell.nix inside shells
3. Content of file new_shell.nix

{ pkgs ? import <nixpkgs> {} }:
let
  
in
pkgs.mkShell {
  buildInputs = with pkgs; [ ];
  shellHook = ''
    echo new_shell.nix
  '';
}

4. Run nix-shell new_shell.nix when in shells folder
5. Change directory to test
6. Running nix-shell results
   error: getting status of '/tmp/test/default.nix': No such file or directory
   Running nix-shell --packages results in evaluation of shellHook from new_shell.nix file and spawning new shell.
   Then repeating nix-shell ---packages runs shellHook again

Expected behavior

When running nix-shell --packages inside nix-shell configured by some file, shellHooks from previous shell are omitted for new shell.

nix-env --version output
nix-env (Nix) 2.18.1

Additional context

[abathur]

This is a duplicate of the following (though i guess the title doesn't make it obvious):

• [nix-shell] unset shellHook? #8257