While working on reproducible builds for ALP + openSUSE, I found that our
grub2 package produced different results when built locally
compared to the official Factory build on OBS.

My guess is that it comes from
https://github.com/openSUSE/pesign-obs-integration

filterdiff 'rpm -qp --qf %{PLATFORM}\n'
binaries*/grub2-2.12~rc1-12.1.x86_64.rpm
--- rpm -qp --qf %{PLATFORM}\n binaries/grub2-2.12~rc1-12.1.x86_64.rpm
+++ rpm -qp --qf %{PLATFORM}\n binaries.nachbau/grub2-2.12~rc1-12.1.x86_64.rpm
@@ -1 +1 @@
-x86_64-suse-linux
+i386-suse-linux-gnu

using
https://github.com/bmwiedemann/reproducibleopensuse/blob/master/filterdiff


Apart from that, there is the (probably unavoidable) sig itself:
--- old /usr/share/grub2/x86_64-efi/grub.efi (hex)
+++ new /usr/share/grub2/x86_64-efi/grub.efi (hex)
@@ -1,6 +1,6 @@
 00000100  00 00 00 00 10 00 00 00  00 00 00 00 00 00 00 00  |................|
 00000110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
-00000120  00 00 00 00 00 00 00 00  00 50 1f 00 70 07 00 00  |.........P..p...|
+*
 00000130  00 30 1f 00 00 20 00 00  00 00 00 00 00 00 00 00  |.0... ..........|
 00000140  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
 *