Configurations are overriding each other

[kalbasit]

Consider the following two files:

a.nix

{ 
  programs.zsh.initExtra = ''
    # From A
  '';
}

b.nix

{ 
  programs.zsh.initExtra = ''
    # From B
  '';
}

Somehow, this is ending up with the value

{ 
  programs.zsh.initExtra = ''
    # From B
  '';
}

This is probably an issue with recImport.