Warnings after running fix for macOS 15 Sequoia update

[LucianU]

After upgrading to macOS 15 Sequoia, I hit the issue reported in NixOS/nix#10892.
I ran the fix suggested in the first comment there and it made the issue go away. However, now every time I deploy my Nix setup on my Mac, I get many warnings of the form:

warning: existing user '_nixbld1' has unexpected uid 351, skipping...

Since @emilazy asked, I haven't made any changes to ids.uids.nixbld. I only ran the command:

curl --proto '=https' --tlsv1.2 -sSf -L https://github.com/NixOS/nix/raw/master/scripts/sequoia-nixbld-user-migration.sh | bash -

Also, I haven't updated nix-darwin in some time. I'm using github:lnl7/nix-darwin/afe83cbc2e673b1f08d32dd0f70df599678ff1e7.

If you need any other details, let me know.

Lucian