Describe the bug

nix edit fails on master with error: cannot open '<path to the Nix file>' in an editor because it has no physical path.

The file does exist, and the same command on Nix 2.19 succeeds.

Steps To Reproduce

$ nix run github:NixOS/nix/8e64cd59b0fe1a4e1d3ba8d359ea0f9af2936f94 -- edit nixpkgs#hello
error: cannot open '/nix/store/n0c1l1jpyvhmyp6lqpf5wrf4hnalpc72-source/pkgs/by-name/he/hello/package.nix' in an editor because it has no physical path

Expected behavior

Should open the relevant file

nix-env --version output

Additional context

Add any other context about the problem here.

Priorities

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