$ git clone -n https://github.com/xcp-ng-rpms/grub.git /var/lib/mock/v8.1-base-1759-1220/root/chroot_tmpdir/scmroot/grub
Cloning into '/var/lib/mock/v8.1-base-1759-1220/root/chroot_tmpdir/scmroot/grub'...
$ git reset --hard d1953794a15a329716cc4264aeeffdc7358f70d3
Downloading SOURCES/grub-2.02.tar.gz (5.6 MB)
HEAD is now at d195379 Merge branch 'XS-8.1'