$ git clone -n https://src.fedoraproject.org/rpms/grub2.git /var/lib/mock/f33-build-326054-58032/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/f33-build-326054-58032/root/chroot_tmpdir/scmroot/grub2'...
$ git reset --hard fbd0a312dae599ec6b272458b24996108da8429f

                                                                                
Updating files:  73% (208/284)

                                                                                
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Updating files: 100% (284/284)

                                                                                
Updating files: 100% (284/284), done.
HEAD is now at fbd0a31 Add support for "systemctl reboot --boot-loader-menu=xx"