grub/grub-2:2.12-1-x86_64.pkg.tar.zst build reproducible in our test framework:
6ff769fc2764f254635a55ae48b56de9f72e3d207c218f91ec108b715d682100 grub-2:2.12-1-x86_64.pkg.tar.zst
1f0653cce54358344849061e36fd5cdfb66f05d5ede9e209e7b0639eb48c7b16 grub-2:2.12-1-x86_64.pkg.tar.zst-b1.BUILDINFO.txt
1f0653cce54358344849061e36fd5cdfb66f05d5ede9e209e7b0639eb48c7b16 grub-2:2.12-1-x86_64.pkg.tar.zst-b2.BUILDINFO.txt